21112984

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{85133}}^1$

素因数の和:85170

約数の個数: 16

約数和(自身を含む): 40864320

約数和(自身を除く): 19751336

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 85133, 170266, 340532, 681064, 2639123, 5278246, 10556492, 21112984]

約数ペア:

[(1, 21112984), (2, 10556492), (4, 5278246), (8, 2639123), (31, 681064), (62, 340532), (124, 170266), (248, 85133)]