21765044

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12743}}^1$

素因数の和:12815

約数の個数: 24

約数和(自身を含む): 44247168

約数和(自身を除く): 22482124

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 12743, 25486, 50972, 89201, 178402, 356804, 777323, 1554646, 3109292, 5441261, 10882522, 21765044]

約数ペア:

[(1, 21765044), (2, 10882522), (4, 5441261), (7, 3109292), (14, 1554646), (28, 777323), (61, 356804), (122, 178402), (244, 89201), (427, 50972), (854, 25486), (1708, 12743)]