21715541484

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{149519}}^1$

素因数の和:149572

約数の個数: 144

約数和(自身を含む): 66817497600

約数和(自身を除く): 45101956116

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 19, 21, 26, 28, 38, 39, 42, 49, 52, 57, 76, 78, 84, 91, 98, 114, 133, 147, 156, 182, 196, 228, 247, 266, 273, 294, 364, 399, 494, 532, 546, 588, 637, 741, 798, 931, 988, 1092, 1274, 1482, 1596, 1729, 1862, 1911, 2548, 2793, 2964, 3458, 3724, 3822, 5187, 5586, 6916, 7644, 10374, 11172, 12103, 20748, 24206, 36309, 48412, 72618, 145236, 149519, 299038, 448557, 598076, 897114, 1046633, 1794228, 1943747, 2093266, 2840861, 3139899, 3887494, 4186532, 5681722, 5831241, 6279798, 7326431, 7774988, 8522583, 11363444, 11662482, 12559596, 13606229, 14652862, 17045166, 19886027, 21979293, 23324964, 27212458, 29305724, 34090332, 36931193, 39772054, 40818687, 43958586, 54424916, 59658081, 73862386, 79544108, 81637374, 87917172, 95243603, 110793579, 119316162, 139202189, 147724772, 163274748, 190487206, 221587158, 238632324, 258518351, 278404378, 285730809, 380974412, 417606567, 443174316, 517036702, 556808756, 571461618, 775555053, 835213134, 1034073404, 1142923236, 1551110106, 1670426268, 1809628457, 3102220212, 3619256914, 5428885371, 7238513828, 10857770742, 21715541484]

約数ペア:

[(1, 21715541484), (2, 10857770742), (3, 7238513828), (4, 5428885371), (6, 3619256914), (7, 3102220212), (12, 1809628457), (13, 1670426268), (14, 1551110106), (19, 1142923236), (21, 1034073404), (26, 835213134), (28, 775555053), (38, 571461618), (39, 556808756), (42, 517036702), (49, 443174316), (52, 417606567), (57, 380974412), (76, 285730809), (78, 278404378), (84, 258518351), (91, 238632324), (98, 221587158), (114, 190487206), (133, 163274748), (147, 147724772), (156, 139202189), (182, 119316162), (196, 110793579), (228, 95243603), (247, 87917172), (266, 81637374), (273, 79544108), (294, 73862386), (364, 59658081), (399, 54424916), (494, 43958586), (532, 40818687), (546, 39772054), (588, 36931193), (637, 34090332), (741, 29305724), (798, 27212458), (931, 23324964), (988, 21979293), (1092, 19886027), (1274, 17045166), (1482, 14652862), (1596, 13606229), (1729, 12559596), (1862, 11662482), (1911, 11363444), (2548, 8522583), (2793, 7774988), (2964, 7326431), (3458, 6279798), (3724, 5831241), (3822, 5681722), (5187, 4186532), (5586, 3887494), (6916, 3139899), (7644, 2840861), (10374, 2093266), (11172, 1943747), (12103, 1794228), (20748, 1046633), (24206, 897114), (36309, 598076), (48412, 448557), (72618, 299038), (145236, 149519)]