21275577

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 31636800

約数和(自身を除く): 10361223

約数列:

[1, 3, 9, 59, 103, 177, 309, 389, 531, 927, 1167, 3501, 6077, 18231, 22951, 40067, 54693, 68853, 120201, 206559, 360603, 2363953, 7091859, 21275577]

約数ペア:

[(1, 21275577), (3, 7091859), (9, 2363953), (59, 360603), (103, 206559), (177, 120201), (309, 68853), (389, 54693), (531, 40067), (927, 22951), (1167, 18231), (3501, 6077)]