215511153

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{727}}^1$

素因数の和:1445

約数の個数: 32

約数和(自身を含む): 338537472

約数和(自身を除く): 123026319

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 691, 727, 2073, 2181, 7601, 7997, 8983, 9451, 22803, 23991, 26949, 28353, 98813, 103961, 296439, 311883, 502357, 1507071, 5525927, 6530641, 16577781, 19591923, 71837051, 215511153]

約数ペア:

[(1, 215511153), (3, 71837051), (11, 19591923), (13, 16577781), (33, 6530641), (39, 5525927), (143, 1507071), (429, 502357), (691, 311883), (727, 296439), (2073, 103961), (2181, 98813), (7601, 28353), (7997, 26949), (8983, 23991), (9451, 22803)]