21431436

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 57200640

約数和(自身を除く): 35769204

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 37, 39, 47, 52, 74, 78, 79, 94, 111, 141, 148, 156, 158, 188, 222, 237, 282, 316, 444, 474, 481, 564, 611, 948, 962, 1027, 1222, 1443, 1739, 1833, 1924, 2054, 2444, 2886, 2923, 3081, 3478, 3666, 3713, 4108, 5217, 5772, 5846, 6162, 6956, 7332, 7426, 8769, 10434, 11139, 11692, 12324, 14852, 17538, 20868, 22278, 22607, 35076, 37999, 44556, 45214, 48269, 67821, 75998, 90428, 96538, 113997, 135642, 137381, 144807, 151996, 193076, 227994, 271284, 274762, 289614, 412143, 455988, 549524, 579228, 824286, 1648572, 1785953, 3571906, 5357859, 7143812, 10715718, 21431436]

約数ペア:

[(1, 21431436), (2, 10715718), (3, 7143812), (4, 5357859), (6, 3571906), (12, 1785953), (13, 1648572), (26, 824286), (37, 579228), (39, 549524), (47, 455988), (52, 412143), (74, 289614), (78, 274762), (79, 271284), (94, 227994), (111, 193076), (141, 151996), (148, 144807), (156, 137381), (158, 135642), (188, 113997), (222, 96538), (237, 90428), (282, 75998), (316, 67821), (444, 48269), (474, 45214), (481, 44556), (564, 37999), (611, 35076), (948, 22607), (962, 22278), (1027, 20868), (1222, 17538), (1443, 14852), (1739, 12324), (1833, 11692), (1924, 11139), (2054, 10434), (2444, 8769), (2886, 7426), (2923, 7332), (3081, 6956), (3478, 6162), (3666, 5846), (3713, 5772), (4108, 5217)]