21861140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156151}}^1$

素因数の和:156167

約数の個数: 24

約数和(自身を含む): 52467072

約数和(自身を除く): 30605932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156151, 312302, 624604, 780755, 1093057, 1561510, 2186114, 3123020, 4372228, 5465285, 10930570, 21861140]

約数ペア:

[(1, 21861140), (2, 10930570), (4, 5465285), (5, 4372228), (7, 3123020), (10, 2186114), (14, 1561510), (20, 1093057), (28, 780755), (35, 624604), (70, 312302), (140, 156151)]