20181261

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{5009}}^1$

素因数の和:5108

約数の個数: 16

約数和(自身を含む): 28857600

約数和(自身を除く): 8676339

約数列:

[1, 3, 17, 51, 79, 237, 1343, 4029, 5009, 15027, 85153, 255459, 395711, 1187133, 6727087, 20181261]

約数ペア:

[(1, 20181261), (3, 6727087), (17, 1187133), (51, 395711), (79, 255459), (237, 85153), (1343, 15027), (4029, 5009)]