21215334

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{72161}}^1$

素因数の和:72180

約数の個数: 24

約数和(自身を含む): 49358808

約数和(自身を除く): 28143474

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 72161, 144322, 216483, 432966, 505127, 1010254, 1515381, 3030762, 3535889, 7071778, 10607667, 21215334]

約数ペア:

[(1, 21215334), (2, 10607667), (3, 7071778), (6, 3535889), (7, 3030762), (14, 1515381), (21, 1010254), (42, 505127), (49, 432966), (98, 216483), (147, 144322), (294, 72161)]