21015423

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5443}}^1$

素因数の和:5476

約数の個数: 32

約数和(自身を含む): 36583680

約数和(自身を除く): 15568257

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 143, 297, 351, 429, 1287, 3861, 5443, 16329, 48987, 59873, 70759, 146961, 179619, 212277, 538857, 636831, 778349, 1616571, 1910493, 2335047, 7005141, 21015423]

約数ペア:

[(1, 21015423), (3, 7005141), (9, 2335047), (11, 1910493), (13, 1616571), (27, 778349), (33, 636831), (39, 538857), (99, 212277), (117, 179619), (143, 146961), (297, 70759), (351, 59873), (429, 48987), (1287, 16329), (3861, 5443)]