21951210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{67}}^2\times {\mathrm{163}}^1$

素因数の和:307

約数の個数: 48

約数和(自身を含む): 53809056

約数和(自身を除く): 31857846

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 67, 134, 163, 201, 326, 335, 402, 489, 670, 815, 978, 1005, 1630, 2010, 2445, 4489, 4890, 8978, 10921, 13467, 21842, 22445, 26934, 32763, 44890, 54605, 65526, 67335, 109210, 134670, 163815, 327630, 731707, 1463414, 2195121, 3658535, 4390242, 7317070, 10975605, 21951210]

約数ペア:

[(1, 21951210), (2, 10975605), (3, 7317070), (5, 4390242), (6, 3658535), (10, 2195121), (15, 1463414), (30, 731707), (67, 327630), (134, 163815), (163, 134670), (201, 109210), (326, 67335), (335, 65526), (402, 54605), (489, 44890), (670, 32763), (815, 26934), (978, 22445), (1005, 21842), (1630, 13467), (2010, 10921), (2445, 8978), (4489, 4890)]