21921620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{22369}}^1$

素因数の和:22392

約数の個数: 36

約数和(自身を含む): 53553780

約数和(自身を除く): 31632160

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 22369, 44738, 89476, 111845, 156583, 223690, 313166, 447380, 626332, 782915, 1096081, 1565830, 2192162, 3131660, 4384324, 5480405, 10960810, 21921620]

約数ペア:

[(1, 21921620), (2, 10960810), (4, 5480405), (5, 4384324), (7, 3131660), (10, 2192162), (14, 1565830), (20, 1096081), (28, 782915), (35, 626332), (49, 447380), (70, 313166), (98, 223690), (140, 156583), (196, 111845), (245, 89476), (490, 44738), (980, 22369)]