21000895532

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{569}}^1\times {\mathrm{542771}}^1$

素因数の和:543361

約数の個数: 24

約数和(自身を含む): 38981885040

約数和(自身を除く): 17980989508

約数列:

[1, 2, 4, 17, 34, 68, 569, 1138, 2276, 9673, 19346, 38692, 542771, 1085542, 2171084, 9227107, 18454214, 36908428, 308836699, 617673398, 1235346796, 5250223883, 10500447766, 21000895532]

約数ペア:

[(1, 21000895532), (2, 10500447766), (4, 5250223883), (17, 1235346796), (34, 617673398), (68, 308836699), (569, 36908428), (1138, 18454214), (2276, 9227107), (9673, 2171084), (19346, 1085542), (38692, 542771)]