21032858

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 40629600

約数和(自身を除く): 19596742

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 109, 154, 179, 218, 358, 539, 763, 1078, 1199, 1253, 1526, 1969, 2398, 2506, 3938, 5341, 8393, 8771, 10682, 13783, 16786, 17542, 19511, 27566, 39022, 58751, 96481, 117502, 136577, 192962, 214621, 273154, 429242, 956039, 1502347, 1912078, 3004694, 10516429, 21032858]

約数ペア:

[(1, 21032858), (2, 10516429), (7, 3004694), (11, 1912078), (14, 1502347), (22, 956039), (49, 429242), (77, 273154), (98, 214621), (109, 192962), (154, 136577), (179, 117502), (218, 96481), (358, 58751), (539, 39022), (763, 27566), (1078, 19511), (1199, 17542), (1253, 16786), (1526, 13783), (1969, 10682), (2398, 8771), (2506, 8393), (3938, 5341)]