20127208003

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{2953}}^1\times {\mathrm{7321}}^1$

素因数の和:10307

約数の個数: 24

約数和(自身を含む): 24657274320

約数和(自身を除く): 4530066317

約数列:

[1, 7, 19, 49, 133, 931, 2953, 7321, 20671, 51247, 56107, 139099, 144697, 358729, 392749, 973693, 2749243, 6815851, 21618913, 151332391, 410759347, 1059326737, 2875315429, 20127208003]

約数ペア:

[(1, 20127208003), (7, 2875315429), (19, 1059326737), (49, 410759347), (133, 151332391), (931, 21618913), (2953, 6815851), (7321, 2749243), (20671, 973693), (51247, 392749), (56107, 358729), (139099, 144697)]