21979870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{947}}^1$

素因数の和:1176

約数の個数: 32

約数和(自身を含む): 43410816

約数和(自身を除く): 21430946

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 211, 422, 947, 1055, 1894, 2110, 2321, 4642, 4735, 9470, 10417, 11605, 20834, 23210, 52085, 104170, 199817, 399634, 999085, 1998170, 2197987, 4395974, 10989935, 21979870]

約数ペア:

[(1, 21979870), (2, 10989935), (5, 4395974), (10, 2197987), (11, 1998170), (22, 999085), (55, 399634), (110, 199817), (211, 104170), (422, 52085), (947, 23210), (1055, 20834), (1894, 11605), (2110, 10417), (2321, 9470), (4642, 4735)]