213415515

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{77747}}^1$

素因数の和:77819

約数の個数: 24

約数和(自身を含む): 375989328

約数和(自身を除く): 162573813

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 77747, 233241, 388735, 699723, 1166205, 3498615, 4742567, 14227701, 23712835, 42683103, 71138505, 213415515]

約数ペア:

[(1, 213415515), (3, 71138505), (5, 42683103), (9, 23712835), (15, 14227701), (45, 4742567), (61, 3498615), (183, 1166205), (305, 699723), (549, 388735), (915, 233241), (2745, 77747)]