21988168

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{144659}}^1$

素因数の和:144684

約数の個数: 16

約数和(自身を含む): 43398000

約数和(自身を除く): 21409832

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 144659, 289318, 578636, 1157272, 2748521, 5497042, 10994084, 21988168]

約数ペア:

[(1, 21988168), (2, 10994084), (4, 5497042), (8, 2748521), (19, 1157272), (38, 578636), (76, 289318), (152, 144659)]