21798050

素因数分解:

$2^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{2213}}^1$

素因数の和:2422

約数の個数: 24

約数和(自身を含む): 40768596

約数和(自身を除く): 18970546

約数列:

[1, 2, 5, 10, 25, 50, 197, 394, 985, 1970, 2213, 4426, 4925, 9850, 11065, 22130, 55325, 110650, 435961, 871922, 2179805, 4359610, 10899025, 21798050]

約数ペア:

[(1, 21798050), (2, 10899025), (5, 4359610), (10, 2179805), (25, 871922), (50, 435961), (197, 110650), (394, 55325), (985, 22130), (1970, 11065), (2213, 9850), (4426, 4925)]