19213995

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{499}}^1$

素因数の和:675

約数の個数: 32

約数和(自身を含む): 32832000

約数和(自身を除く): 13618005

約数列:

[1, 3, 5, 15, 17, 51, 85, 151, 255, 453, 499, 755, 1497, 2265, 2495, 2567, 7485, 7701, 8483, 12835, 25449, 38505, 42415, 75349, 127245, 226047, 376745, 1130235, 1280933, 3842799, 6404665, 19213995]

約数ペア:

[(1, 19213995), (3, 6404665), (5, 3842799), (15, 1280933), (17, 1130235), (51, 376745), (85, 226047), (151, 127245), (255, 75349), (453, 42415), (499, 38505), (755, 25449), (1497, 12835), (2265, 8483), (2495, 7701), (2567, 7485)]