21638812

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5861}}^1$

素因数の和:5949

約数の個数: 24

約数和(自身を含む): 41362272

約数和(自身を除く): 19723460

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5861, 11722, 23444, 76193, 152386, 304772, 416131, 832262, 1664524, 5409703, 10819406, 21638812]

約数ペア:

[(1, 21638812), (2, 10819406), (4, 5409703), (13, 1664524), (26, 832262), (52, 416131), (71, 304772), (142, 152386), (284, 76193), (923, 23444), (1846, 11722), (3692, 5861)]