21299236

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{12893}}^1$

素因数の和:12963

約数の個数: 24

約数和(自身を含む): 43323840

約数和(自身を除く): 22024604

約数列:

[1, 2, 4, 7, 14, 28, 59, 118, 236, 413, 826, 1652, 12893, 25786, 51572, 90251, 180502, 361004, 760687, 1521374, 3042748, 5324809, 10649618, 21299236]

約数ペア:

[(1, 21299236), (2, 10649618), (4, 5324809), (7, 3042748), (14, 1521374), (28, 760687), (59, 361004), (118, 180502), (236, 90251), (413, 51572), (826, 25786), (1652, 12893)]