21010238

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1\times {\mathrm{839}}^1$

素因数の和:1519

約数の個数: 16

約数和(自身を含む): 33264000

約数和(自身を除く): 12253762

約数列:

[1, 2, 19, 38, 659, 839, 1318, 1678, 12521, 15941, 25042, 31882, 552901, 1105802, 10505119, 21010238]

約数ペア:

[(1, 21010238), (2, 10505119), (19, 1105802), (38, 552901), (659, 31882), (839, 25042), (1318, 15941), (1678, 12521)]