21768340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{98947}}^1$

素因数の和:98967

約数の個数: 24

約数和(自身を含む): 49869792

約数和(自身を除く): 28101452

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 98947, 197894, 395788, 494735, 989470, 1088417, 1978940, 2176834, 4353668, 5442085, 10884170, 21768340]

約数ペア:

[(1, 21768340), (2, 10884170), (4, 5442085), (5, 4353668), (10, 2176834), (11, 1978940), (20, 1088417), (22, 989470), (44, 494735), (55, 395788), (110, 197894), (220, 98947)]