21874892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{420671}}^1$

素因数の和:420688

約数の個数: 12

約数和(自身を含む): 41225856

約数和(自身を除く): 19350964

約数列:

[1, 2, 4, 13, 26, 52, 420671, 841342, 1682684, 5468723, 10937446, 21874892]

約数ペア:

[(1, 21874892), (2, 10937446), (4, 5468723), (13, 1682684), (26, 841342), (52, 420671)]