21173868

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{18973}}^1$

素因数の和:19014

約数の個数: 36

約数和(自身を含む): 55252288

約数和(自身を除く): 34078420

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 372, 558, 1116, 18973, 37946, 56919, 75892, 113838, 170757, 227676, 341514, 588163, 683028, 1176326, 1764489, 2352652, 3528978, 5293467, 7057956, 10586934, 21173868]

約数ペア:

[(1, 21173868), (2, 10586934), (3, 7057956), (4, 5293467), (6, 3528978), (9, 2352652), (12, 1764489), (18, 1176326), (31, 683028), (36, 588163), (62, 341514), (93, 227676), (124, 170757), (186, 113838), (279, 75892), (372, 56919), (558, 37946), (1116, 18973)]