21120696

素因数分解:

$2^3\times 3^3\times {\mathrm{277}}^1\times {\mathrm{353}}^1$

素因数の和:645

約数の個数: 64

約数和(自身を含む): 59047200

約数和(自身を除く): 37926504

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 277, 353, 554, 706, 831, 1059, 1108, 1412, 1662, 2118, 2216, 2493, 2824, 3177, 3324, 4236, 4986, 6354, 6648, 7479, 8472, 9531, 9972, 12708, 14958, 19062, 19944, 25416, 29916, 38124, 59832, 76248, 97781, 195562, 293343, 391124, 586686, 782248, 880029, 1173372, 1760058, 2346744, 2640087, 3520116, 5280174, 7040232, 10560348, 21120696]

約数ペア:

[(1, 21120696), (2, 10560348), (3, 7040232), (4, 5280174), (6, 3520116), (8, 2640087), (9, 2346744), (12, 1760058), (18, 1173372), (24, 880029), (27, 782248), (36, 586686), (54, 391124), (72, 293343), (108, 195562), (216, 97781), (277, 76248), (353, 59832), (554, 38124), (706, 29916), (831, 25416), (1059, 19944), (1108, 19062), (1412, 14958), (1662, 12708), (2118, 9972), (2216, 9531), (2493, 8472), (2824, 7479), (3177, 6648), (3324, 6354), (4236, 4986)]