21018008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{238841}}^1$

素因数の和:238858

約数の個数: 16

約数和(自身を含む): 42991560

約数和(自身を除く): 21973552

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 238841, 477682, 955364, 1910728, 2627251, 5254502, 10509004, 21018008]

約数ペア:

[(1, 21018008), (2, 10509004), (4, 5254502), (8, 2627251), (11, 1910728), (22, 955364), (44, 477682), (88, 238841)]