21260316

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 66648960

約数和(自身を除く): 45388644

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 19, 21, 22, 28, 33, 38, 42, 44, 49, 57, 66, 76, 77, 84, 98, 114, 132, 133, 147, 154, 173, 196, 209, 228, 231, 266, 294, 308, 346, 399, 418, 462, 519, 532, 539, 588, 627, 692, 798, 836, 924, 931, 1038, 1078, 1211, 1254, 1463, 1596, 1617, 1862, 1903, 2076, 2156, 2422, 2508, 2793, 2926, 3234, 3287, 3633, 3724, 3806, 4389, 4844, 5586, 5709, 5852, 6468, 6574, 7266, 7612, 8477, 8778, 9861, 10241, 11172, 11418, 13148, 13321, 14532, 16954, 17556, 19722, 20482, 22836, 23009, 25431, 26642, 30723, 33908, 36157, 39444, 39963, 40964, 46018, 50862, 53284, 61446, 69027, 72314, 79926, 92036, 93247, 101724, 108471, 122892, 138054, 144628, 159852, 161063, 186494, 216942, 253099, 276108, 279741, 322126, 372988, 433884, 483189, 506198, 559482, 644252, 759297, 966378, 1012396, 1118964, 1518594, 1771693, 1932756, 3037188, 3543386, 5315079, 7086772, 10630158, 21260316]

約数ペア:

[(1, 21260316), (2, 10630158), (3, 7086772), (4, 5315079), (6, 3543386), (7, 3037188), (11, 1932756), (12, 1771693), (14, 1518594), (19, 1118964), (21, 1012396), (22, 966378), (28, 759297), (33, 644252), (38, 559482), (42, 506198), (44, 483189), (49, 433884), (57, 372988), (66, 322126), (76, 279741), (77, 276108), (84, 253099), (98, 216942), (114, 186494), (132, 161063), (133, 159852), (147, 144628), (154, 138054), (173, 122892), (196, 108471), (209, 101724), (228, 93247), (231, 92036), (266, 79926), (294, 72314), (308, 69027), (346, 61446), (399, 53284), (418, 50862), (462, 46018), (519, 40964), (532, 39963), (539, 39444), (588, 36157), (627, 33908), (692, 30723), (798, 26642), (836, 25431), (924, 23009), (931, 22836), (1038, 20482), (1078, 19722), (1211, 17556), (1254, 16954), (1463, 14532), (1596, 13321), (1617, 13148), (1862, 11418), (1903, 11172), (2076, 10241), (2156, 9861), (2422, 8778), (2508, 8477), (2793, 7612), (2926, 7266), (3234, 6574), (3287, 6468), (3633, 5852), (3724, 5709), (3806, 5586), (4389, 4844)]