18531865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 25380864

約数和(自身を除く): 6848999

約数列:

[1, 5, 11, 47, 55, 67, 107, 235, 335, 517, 535, 737, 1177, 2585, 3149, 3685, 5029, 5885, 7169, 15745, 25145, 34639, 35845, 55319, 78859, 173195, 276595, 336943, 394295, 1684715, 3706373, 18531865]

約数ペア:

[(1, 18531865), (5, 3706373), (11, 1684715), (47, 394295), (55, 336943), (67, 276595), (107, 173195), (235, 78859), (335, 55319), (517, 35845), (535, 34639), (737, 25145), (1177, 15745), (2585, 7169), (3149, 5885), (3685, 5029)]