21178652

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{13009}}^1$

素因数の和:13061

約数の個数: 24

約数和(自身を含む): 41527920

約数和(自身を除く): 20349268

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 13009, 26018, 52036, 143099, 286198, 481333, 572396, 962666, 1925332, 5294663, 10589326, 21178652]

約数ペア:

[(1, 21178652), (2, 10589326), (4, 5294663), (11, 1925332), (22, 962666), (37, 572396), (44, 481333), (74, 286198), (148, 143099), (407, 52036), (814, 26018), (1628, 13009)]