201913893

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{2887}}^1$

素因数の和:3321

約数の個数: 24

約数和(自身を含む): 307860800

約数和(自身を除く): 105946907

約数列:

[1, 3, 9, 19, 57, 171, 409, 1227, 2887, 3681, 7771, 8661, 23313, 25983, 54853, 69939, 164559, 493677, 1180783, 3542349, 10627047, 22434877, 67304631, 201913893]

約数ペア:

[(1, 201913893), (3, 67304631), (9, 22434877), (19, 10627047), (57, 3542349), (171, 1180783), (409, 493677), (1227, 164559), (2887, 69939), (3681, 54853), (7771, 25983), (8661, 23313)]