20405944

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{5303}}^1$

素因数の和:5359

約数の個数: 32

約数和(自身を含む): 42325920

約数和(自身を除く): 21919976

約数列:

[1, 2, 4, 8, 13, 26, 37, 52, 74, 104, 148, 296, 481, 962, 1924, 3848, 5303, 10606, 21212, 42424, 68939, 137878, 196211, 275756, 392422, 551512, 784844, 1569688, 2550743, 5101486, 10202972, 20405944]

約数ペア:

[(1, 20405944), (2, 10202972), (4, 5101486), (8, 2550743), (13, 1569688), (26, 784844), (37, 551512), (52, 392422), (74, 275756), (104, 196211), (148, 137878), (296, 68939), (481, 42424), (962, 21212), (1924, 10606), (3848, 5303)]