21663004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{4357}}^1$

素因数の和:4485

約数の個数: 24

約数和(自身を含む): 41732208

約数和(自身を除く): 20069204

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4357, 4972, 8714, 17428, 47927, 95854, 191708, 492341, 984682, 1969364, 5415751, 10831502, 21663004]

約数ペア:

[(1, 21663004), (2, 10831502), (4, 5415751), (11, 1969364), (22, 984682), (44, 492341), (113, 191708), (226, 95854), (452, 47927), (1243, 17428), (2486, 8714), (4357, 4972)]