21869912

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{143881}}^1$

素因数の和:143906

約数の個数: 16

約数和(自身を含む): 43164600

約数和(自身を除く): 21294688

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 143881, 287762, 575524, 1151048, 2733739, 5467478, 10934956, 21869912]

約数ペア:

[(1, 21869912), (2, 10934956), (4, 5467478), (8, 2733739), (19, 1151048), (38, 575524), (76, 287762), (152, 143881)]