21872630

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{541}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 42614208

約数和(自身を除く): 20741578

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 311, 541, 622, 1082, 1555, 2705, 3110, 4043, 5410, 7033, 8086, 14066, 20215, 35165, 40430, 70330, 168251, 336502, 841255, 1682510, 2187263, 4374526, 10936315, 21872630]

約数ペア:

[(1, 21872630), (2, 10936315), (5, 4374526), (10, 2187263), (13, 1682510), (26, 841255), (65, 336502), (130, 168251), (311, 70330), (541, 40430), (622, 35165), (1082, 20215), (1555, 14066), (2705, 8086), (3110, 7033), (4043, 5410)]