21862665

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1523}}^1$

素因数の和:1574

約数の個数: 48

約数和(自身を含む): 42793920

約数和(自身を除く): 20931255

約数列:

[1, 3, 5, 9, 11, 15, 29, 33, 45, 55, 87, 99, 145, 165, 261, 319, 435, 495, 957, 1305, 1523, 1595, 2871, 4569, 4785, 7615, 13707, 14355, 16753, 22845, 44167, 50259, 68535, 83765, 132501, 150777, 220835, 251295, 397503, 485837, 662505, 753885, 1457511, 1987515, 2429185, 4372533, 7287555, 21862665]

約数ペア:

[(1, 21862665), (3, 7287555), (5, 4372533), (9, 2429185), (11, 1987515), (15, 1457511), (29, 753885), (33, 662505), (45, 485837), (55, 397503), (87, 251295), (99, 220835), (145, 150777), (165, 132501), (261, 83765), (319, 68535), (435, 50259), (495, 44167), (957, 22845), (1305, 16753), (1523, 14355), (1595, 13707), (2871, 7615), (4569, 4785)]