217121013

素因数分解:

$3^3\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{773}}^1$

素因数の和:986

約数の個数: 32

約数和(自身を含む): 328423680

約数和(自身を除く): 111302667

約数列:

[1, 3, 9, 27, 101, 103, 303, 309, 773, 909, 927, 2319, 2727, 2781, 6957, 10403, 20871, 31209, 78073, 79619, 93627, 234219, 238857, 280881, 702657, 716571, 2107971, 2149713, 8041519, 24124557, 72373671, 217121013]

約数ペア:

[(1, 217121013), (3, 72373671), (9, 24124557), (27, 8041519), (101, 2149713), (103, 2107971), (303, 716571), (309, 702657), (773, 280881), (909, 238857), (927, 234219), (2319, 93627), (2727, 79619), (2781, 78073), (6957, 31209), (10403, 20871)]