21985448

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{88651}}^1$

素因数の和:88688

約数の個数: 16

約数和(自身を含む): 42552960

約数和(自身を除く): 20567512

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 88651, 177302, 354604, 709208, 2748181, 5496362, 10992724, 21985448]

約数ペア:

[(1, 21985448), (2, 10992724), (4, 5496362), (8, 2748181), (31, 709208), (62, 354604), (124, 177302), (248, 88651)]