18866515

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{1283}}^1$

素因数の和:1478

約数の個数: 16

約数和(自身を含む): 24128928

約数和(自身を除く): 5262413

約数列:

[1, 5, 17, 85, 173, 865, 1283, 2941, 6415, 14705, 21811, 109055, 221959, 1109795, 3773303, 18866515]

約数ペア:

[(1, 18866515), (5, 3773303), (17, 1109795), (85, 221959), (173, 109055), (865, 21811), (1283, 14705), (2941, 6415)]