21819369

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{281}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 34489728

約数和(自身を除く): 12670359

約数列:

[1, 3, 11, 13, 33, 39, 143, 181, 281, 429, 543, 843, 1991, 2353, 3091, 3653, 5973, 7059, 9273, 10959, 25883, 40183, 50861, 77649, 120549, 152583, 559471, 661193, 1678413, 1983579, 7273123, 21819369]

約数ペア:

[(1, 21819369), (3, 7273123), (11, 1983579), (13, 1678413), (33, 661193), (39, 559471), (143, 152583), (181, 120549), (281, 77649), (429, 50861), (543, 40183), (843, 25883), (1991, 10959), (2353, 9273), (3091, 7059), (3653, 5973)]