290871722

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{20857}}^1$

素因数の和:21245

約数の個数: 16

約数和(自身を含む): 460544640

約数和(自身を除く): 169672918

約数列:

[1, 2, 19, 38, 367, 734, 6973, 13946, 20857, 41714, 396283, 792566, 7654519, 15309038, 145435861, 290871722]

約数ペア:

[(1, 290871722), (2, 145435861), (19, 15309038), (38, 7654519), (367, 792566), (734, 396283), (6973, 41714), (13946, 20857)]