215570403

素因数分解:

$3^7\times {\mathrm{241}}^1\times {\mathrm{409}}^1$

素因数の和:671

約数の個数: 32

約数和(自身を含む): 325441600

約数和(自身を除く): 109871197

約数列:

[1, 3, 9, 27, 81, 241, 243, 409, 723, 729, 1227, 2169, 2187, 3681, 6507, 11043, 19521, 33129, 58563, 98569, 99387, 175689, 295707, 298161, 527067, 887121, 894483, 2661363, 7984089, 23952267, 71856801, 215570403]

約数ペア:

[(1, 215570403), (3, 71856801), (9, 23952267), (27, 7984089), (81, 2661363), (241, 894483), (243, 887121), (409, 527067), (723, 298161), (729, 295707), (1227, 175689), (2169, 99387), (2187, 98569), (3681, 58563), (6507, 33129), (11043, 19521)]