21855992

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{88129}}^1$

素因数の和:88166

約数の個数: 16

約数和(自身を含む): 42302400

約数和(自身を除く): 20446408

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 88129, 176258, 352516, 705032, 2731999, 5463998, 10927996, 21855992]

約数ペア:

[(1, 21855992), (2, 10927996), (4, 5463998), (8, 2731999), (31, 705032), (62, 352516), (124, 176258), (248, 88129)]