18807015

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{563}}^1$

素因数の和:719

約数の個数: 32

約数和(自身を含む): 32161536

約数和(自身を除く): 13354521

約数列:

[1, 3, 5, 15, 17, 51, 85, 131, 255, 393, 563, 655, 1689, 1965, 2227, 2815, 6681, 8445, 9571, 11135, 28713, 33405, 47855, 73753, 143565, 221259, 368765, 1106295, 1253801, 3761403, 6269005, 18807015]

約数ペア:

[(1, 18807015), (3, 6269005), (5, 3761403), (15, 1253801), (17, 1106295), (51, 368765), (85, 221259), (131, 143565), (255, 73753), (393, 47855), (563, 33405), (655, 28713), (1689, 11135), (1965, 9571), (2227, 8445), (2815, 6681)]