21963566

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{1129}}^1$

素因数の和:1339

約数の個数: 16

約数和(自身を含む): 33683040

約数和(自身を除く): 11719474

約数列:

[1, 2, 71, 137, 142, 274, 1129, 2258, 9727, 19454, 80159, 154673, 160318, 309346, 10981783, 21963566]

約数ペア:

[(1, 21963566), (2, 10981783), (71, 309346), (137, 160318), (142, 154673), (274, 80159), (1129, 19454), (2258, 9727)]