21892563

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4513}}^1$

素因数の和:4544

約数の個数: 36

約数和(自身を含む): 40138488

約数和(自身を除く): 18245925

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4513, 4851, 13539, 31591, 40617, 49643, 94773, 148929, 221137, 284319, 347501, 446787, 663411, 1042503, 1990233, 2432507, 3127509, 7297521, 21892563]

約数ペア:

[(1, 21892563), (3, 7297521), (7, 3127509), (9, 2432507), (11, 1990233), (21, 1042503), (33, 663411), (49, 446787), (63, 347501), (77, 284319), (99, 221137), (147, 148929), (231, 94773), (441, 49643), (539, 40617), (693, 31591), (1617, 13539), (4513, 4851)]