21727668

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{269}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 52254720

約数和(自身を除く): 30527052

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 127, 159, 212, 254, 269, 318, 381, 508, 538, 636, 762, 807, 1076, 1524, 1614, 3228, 6731, 13462, 14257, 20193, 26924, 28514, 34163, 40386, 42771, 57028, 68326, 80772, 85542, 102489, 136652, 171084, 204978, 409956, 1810639, 3621278, 5431917, 7242556, 10863834, 21727668]

約数ペア:

[(1, 21727668), (2, 10863834), (3, 7242556), (4, 5431917), (6, 3621278), (12, 1810639), (53, 409956), (106, 204978), (127, 171084), (159, 136652), (212, 102489), (254, 85542), (269, 80772), (318, 68326), (381, 57028), (508, 42771), (538, 40386), (636, 34163), (762, 28514), (807, 26924), (1076, 20193), (1524, 14257), (1614, 13462), (3228, 6731)]