17965995

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:403

約数の個数: 32

約数和(自身を含む): 29804544

約数和(自身を除く): 11838549

約数列:

[1, 3, 5, 15, 41, 123, 131, 205, 223, 393, 615, 655, 669, 1115, 1965, 3345, 5371, 9143, 16113, 26855, 27429, 29213, 45715, 80565, 87639, 137145, 146065, 438195, 1197733, 3593199, 5988665, 17965995]

約数ペア:

[(1, 17965995), (3, 5988665), (5, 3593199), (15, 1197733), (41, 438195), (123, 146065), (131, 137145), (205, 87639), (223, 80565), (393, 45715), (615, 29213), (655, 27429), (669, 26855), (1115, 16113), (1965, 9143), (3345, 5371)]