18710115

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{307}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 13223325

約数列:

[1, 3, 5, 15, 17, 51, 85, 239, 255, 307, 717, 921, 1195, 1535, 3585, 4063, 4605, 5219, 12189, 15657, 20315, 26095, 60945, 73373, 78285, 220119, 366865, 1100595, 1247341, 3742023, 6236705, 18710115]

約数ペア:

[(1, 18710115), (3, 6236705), (5, 3742023), (15, 1247341), (17, 1100595), (51, 366865), (85, 220119), (239, 78285), (255, 73373), (307, 60945), (717, 26095), (921, 20315), (1195, 15657), (1535, 12189), (3585, 5219), (4063, 4605)]