31621317

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{16547}}^1$

素因数の和:16577

約数の個数: 24

約数和(自身を含む): 52821216

約数和(自身を除く): 21199899

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 16547, 49641, 115829, 215111, 347487, 645333, 810803, 1505777, 2432409, 4517331, 10540439, 31621317]

約数ペア:

[(1, 31621317), (3, 10540439), (7, 4517331), (13, 2432409), (21, 1505777), (39, 810803), (49, 645333), (91, 347487), (147, 215111), (273, 115829), (637, 49641), (1911, 16547)]