20893215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{1031}}^1$

素因数の和:1239

約数の個数: 32

約数和(自身を含む): 38439936

約数和(自身を除く): 17546721

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 193, 579, 965, 1031, 1351, 2895, 3093, 4053, 5155, 6755, 7217, 15465, 20265, 21651, 36085, 108255, 198983, 596949, 994915, 1392881, 2984745, 4178643, 6964405, 20893215]

約数ペア:

[(1, 20893215), (3, 6964405), (5, 4178643), (7, 2984745), (15, 1392881), (21, 994915), (35, 596949), (105, 198983), (193, 108255), (579, 36085), (965, 21651), (1031, 20265), (1351, 15465), (2895, 7217), (3093, 6755), (4053, 5155)]