17997385

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{283}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 26173440

約数和(自身を除く): 8176055

約数列:

[1, 5, 7, 23, 35, 79, 115, 161, 283, 395, 553, 805, 1415, 1817, 1981, 2765, 6509, 9085, 9905, 12719, 22357, 32545, 45563, 63595, 111785, 156499, 227815, 514211, 782495, 2571055, 3599477, 17997385]

約数ペア:

[(1, 17997385), (5, 3599477), (7, 2571055), (23, 782495), (35, 514211), (79, 227815), (115, 156499), (161, 111785), (283, 63595), (395, 45563), (553, 32545), (805, 22357), (1415, 12719), (1817, 9905), (1981, 9085), (2765, 6509)]