215793513

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{16921}}^1$

素因数の和:17049

約数の個数: 24

約数和(自身を含む): 338778440

約数和(自身を除く): 122984927

約数列:

[1, 3, 9, 13, 39, 109, 117, 327, 981, 1417, 4251, 12753, 16921, 50763, 152289, 219973, 659919, 1844389, 1979757, 5533167, 16599501, 23977057, 71931171, 215793513]

約数ペア:

[(1, 215793513), (3, 71931171), (9, 23977057), (13, 16599501), (39, 5533167), (109, 1979757), (117, 1844389), (327, 659919), (981, 219973), (1417, 152289), (4251, 50763), (12753, 16921)]