20993535

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16087}}^1$

素因数の和:16127

約数の個数: 24

約数和(自身を含む): 37645920

約数和(自身を除く): 16652385

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16087, 48261, 80435, 144783, 241305, 466523, 723915, 1399569, 2332615, 4198707, 6997845, 20993535]

約数ペア:

[(1, 20993535), (3, 6997845), (5, 4198707), (9, 2332615), (15, 1399569), (29, 723915), (45, 466523), (87, 241305), (145, 144783), (261, 80435), (435, 48261), (1305, 16087)]