21100110

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 53222400

約数和(自身を除く): 32122290

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 79, 87, 145, 158, 174, 237, 290, 307, 395, 435, 474, 614, 790, 870, 921, 1185, 1535, 1842, 2291, 2370, 3070, 4582, 4605, 6873, 8903, 9210, 11455, 13746, 17806, 22910, 24253, 26709, 34365, 44515, 48506, 53418, 68730, 72759, 89030, 121265, 133545, 145518, 242530, 267090, 363795, 703337, 727590, 1406674, 2110011, 3516685, 4220022, 7033370, 10550055, 21100110]

約数ペア:

[(1, 21100110), (2, 10550055), (3, 7033370), (5, 4220022), (6, 3516685), (10, 2110011), (15, 1406674), (29, 727590), (30, 703337), (58, 363795), (79, 267090), (87, 242530), (145, 145518), (158, 133545), (174, 121265), (237, 89030), (290, 72759), (307, 68730), (395, 53418), (435, 48506), (474, 44515), (614, 34365), (790, 26709), (870, 24253), (921, 22910), (1185, 17806), (1535, 13746), (1842, 11455), (2291, 9210), (2370, 8903), (3070, 6873), (4582, 4605)]