20700015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1439}}^1$

素因数の和:1591

約数の個数: 32

約数和(自身を含む): 38154240

約数和(自身を除く): 17454225

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 137, 411, 685, 959, 1439, 2055, 2877, 4317, 4795, 7195, 10073, 14385, 21585, 30219, 50365, 151095, 197143, 591429, 985715, 1380001, 2957145, 4140003, 6900005, 20700015]

約数ペア:

[(1, 20700015), (3, 6900005), (5, 4140003), (7, 2957145), (15, 1380001), (21, 985715), (35, 591429), (105, 197143), (137, 151095), (411, 50365), (685, 30219), (959, 21585), (1439, 14385), (2055, 10073), (2877, 7195), (4317, 4795)]