18768525

素因数分解:

$3^1\times 5^2\times {\mathrm{251}}^1\times {\mathrm{997}}^1$

素因数の和:1261

約数の個数: 24

約数和(自身を含む): 31185504

約数和(自身を除く): 12416979

約数列:

[1, 3, 5, 15, 25, 75, 251, 753, 997, 1255, 2991, 3765, 4985, 6275, 14955, 18825, 24925, 74775, 250247, 750741, 1251235, 3753705, 6256175, 18768525]

約数ペア:

[(1, 18768525), (3, 6256175), (5, 3753705), (15, 1251235), (25, 750741), (75, 250247), (251, 74775), (753, 24925), (997, 18825), (1255, 14955), (2991, 6275), (3765, 4985)]