19791051

素因数分解:

$3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 32744448

約数和(自身を除く): 12953397

約数列:

[1, 3, 7, 21, 31, 43, 49, 93, 101, 129, 147, 217, 301, 303, 651, 707, 903, 1333, 1519, 2107, 2121, 3131, 3999, 4343, 4557, 4949, 6321, 9331, 9393, 13029, 14847, 21917, 27993, 30401, 65317, 65751, 91203, 134633, 153419, 195951, 212807, 403899, 460257, 638421, 942431, 2827293, 6597017, 19791051]

約数ペア:

[(1, 19791051), (3, 6597017), (7, 2827293), (21, 942431), (31, 638421), (43, 460257), (49, 403899), (93, 212807), (101, 195951), (129, 153419), (147, 134633), (217, 91203), (301, 65751), (303, 65317), (651, 30401), (707, 27993), (903, 21917), (1333, 14847), (1519, 13029), (2107, 9393), (2121, 9331), (3131, 6321), (3999, 4949), (4343, 4557)]