21070672

素因数分解:

$2^4\times 7^1\times {\mathrm{419}}^1\times {\mathrm{449}}^1$

素因数の和:883

約数の個数: 40

約数和(自身を含む): 46872000

約数和(自身を除く): 25801328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 419, 449, 838, 898, 1676, 1796, 2933, 3143, 3352, 3592, 5866, 6286, 6704, 7184, 11732, 12572, 23464, 25144, 46928, 50288, 188131, 376262, 752524, 1316917, 1505048, 2633834, 3010096, 5267668, 10535336, 21070672]

約数ペア:

[(1, 21070672), (2, 10535336), (4, 5267668), (7, 3010096), (8, 2633834), (14, 1505048), (16, 1316917), (28, 752524), (56, 376262), (112, 188131), (419, 50288), (449, 46928), (838, 25144), (898, 23464), (1676, 12572), (1796, 11732), (2933, 7184), (3143, 6704), (3352, 6286), (3592, 5866)]