18889455

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{617}}^1$

素因数の和:795

約数の個数: 32

約数和(自身を含む): 32808384

約数和(自身を除く): 13918929

約数列:

[1, 3, 5, 13, 15, 39, 65, 157, 195, 471, 617, 785, 1851, 2041, 2355, 3085, 6123, 8021, 9255, 10205, 24063, 30615, 40105, 96869, 120315, 290607, 484345, 1259297, 1453035, 3777891, 6296485, 18889455]

約数ペア:

[(1, 18889455), (3, 6296485), (5, 3777891), (13, 1453035), (15, 1259297), (39, 484345), (65, 290607), (157, 120315), (195, 96869), (471, 40105), (617, 30615), (785, 24063), (1851, 10205), (2041, 9255), (2355, 8021), (3085, 6123)]