21619416

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:569

約数の個数: 128

約数和(自身を含む): 70156800

約数和(自身を除く): 48537384

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 19, 21, 24, 26, 28, 38, 39, 42, 52, 56, 57, 76, 78, 84, 91, 104, 114, 133, 152, 156, 168, 182, 228, 247, 266, 273, 312, 364, 399, 456, 494, 521, 532, 546, 728, 741, 798, 988, 1042, 1064, 1092, 1482, 1563, 1596, 1729, 1976, 2084, 2184, 2964, 3126, 3192, 3458, 3647, 4168, 5187, 5928, 6252, 6773, 6916, 7294, 9899, 10374, 10941, 12504, 13546, 13832, 14588, 19798, 20319, 20748, 21882, 27092, 29176, 29697, 39596, 40638, 41496, 43764, 47411, 54184, 59394, 69293, 79192, 81276, 87528, 94822, 118788, 128687, 138586, 142233, 162552, 189644, 207879, 237576, 257374, 277172, 284466, 379288, 386061, 415758, 514748, 554344, 568932, 772122, 831516, 900809, 1029496, 1137864, 1544244, 1663032, 1801618, 2702427, 3088488, 3603236, 5404854, 7206472, 10809708, 21619416]

約数ペア:

[(1, 21619416), (2, 10809708), (3, 7206472), (4, 5404854), (6, 3603236), (7, 3088488), (8, 2702427), (12, 1801618), (13, 1663032), (14, 1544244), (19, 1137864), (21, 1029496), (24, 900809), (26, 831516), (28, 772122), (38, 568932), (39, 554344), (42, 514748), (52, 415758), (56, 386061), (57, 379288), (76, 284466), (78, 277172), (84, 257374), (91, 237576), (104, 207879), (114, 189644), (133, 162552), (152, 142233), (156, 138586), (168, 128687), (182, 118788), (228, 94822), (247, 87528), (266, 81276), (273, 79192), (312, 69293), (364, 59394), (399, 54184), (456, 47411), (494, 43764), (521, 41496), (532, 40638), (546, 39596), (728, 29697), (741, 29176), (798, 27092), (988, 21882), (1042, 20748), (1064, 20319), (1092, 19798), (1482, 14588), (1563, 13832), (1596, 13546), (1729, 12504), (1976, 10941), (2084, 10374), (2184, 9899), (2964, 7294), (3126, 6916), (3192, 6773), (3458, 6252), (3647, 5928), (4168, 5187)]