21000815476

素因数分解:

$2^2\times {\mathrm{619}}^1\times {\mathrm{821}}^1\times {\mathrm{10331}}^1$

素因数の和:11775

約数の個数: 24

約数和(自身を含む): 36859203360

約数和(自身を除く): 15858387884

約数列:

[1, 2, 4, 619, 821, 1238, 1642, 2476, 3284, 10331, 20662, 41324, 508199, 1016398, 2032796, 6394889, 8481751, 12789778, 16963502, 25579556, 33927004, 5250203869, 10500407738, 21000815476]

約数ペア:

[(1, 21000815476), (2, 10500407738), (4, 5250203869), (619, 33927004), (821, 25579556), (1238, 16963502), (1642, 12789778), (2476, 8481751), (3284, 6394889), (10331, 2032796), (20662, 1016398), (41324, 508199)]