18984015

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{5779}}^1$

素因数の和:5863

約数の個数: 24

約数和(自身を含む): 33362160

約数和(自身を除く): 14378145

約数列:

[1, 3, 5, 9, 15, 45, 73, 219, 365, 657, 1095, 3285, 5779, 17337, 28895, 52011, 86685, 260055, 421867, 1265601, 2109335, 3796803, 6328005, 18984015]

約数ペア:

[(1, 18984015), (3, 6328005), (5, 3796803), (9, 2109335), (15, 1265601), (45, 421867), (73, 260055), (219, 86685), (365, 52011), (657, 28895), (1095, 17337), (3285, 5779)]