20041665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1171}}^1$

素因数の和:1349

約数の個数: 32

約数和(自身を含む): 36903936

約数和(自身を除く): 16862271

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 163, 489, 815, 1141, 1171, 2445, 3423, 3513, 5705, 5855, 8197, 17115, 17565, 24591, 40985, 122955, 190873, 572619, 954365, 1336111, 2863095, 4008333, 6680555, 20041665]

約数ペア:

[(1, 20041665), (3, 6680555), (5, 4008333), (7, 2863095), (15, 1336111), (21, 954365), (35, 572619), (105, 190873), (163, 122955), (489, 40985), (815, 24591), (1141, 17565), (1171, 17115), (2445, 8197), (3423, 5855), (3513, 5705)]