19995431038

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{396719}}^1$

素因数の和:396840

約数の個数: 32

約数和(自身を含む): 34276608000

約数和(自身を除く): 14281176962

約数列:

[1, 2, 11, 22, 29, 58, 79, 158, 319, 638, 869, 1738, 2291, 4582, 25201, 50402, 396719, 793438, 4363909, 8727818, 11504851, 23009702, 31340801, 62681602, 126553361, 253106722, 344748811, 689497622, 908883229, 1817766458, 9997715519, 19995431038]

約数ペア:

[(1, 19995431038), (2, 9997715519), (11, 1817766458), (22, 908883229), (29, 689497622), (58, 344748811), (79, 253106722), (158, 126553361), (319, 62681602), (638, 31340801), (869, 23009702), (1738, 11504851), (2291, 8727818), (4582, 4363909), (25201, 793438), (50402, 396719)]