19013955

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{719}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 12919485

約数列:

[1, 3, 5, 15, 41, 43, 123, 129, 205, 215, 615, 645, 719, 1763, 2157, 3595, 5289, 8815, 10785, 26445, 29479, 30917, 88437, 92751, 147395, 154585, 442185, 463755, 1267597, 3802791, 6337985, 19013955]

約数ペア:

[(1, 19013955), (3, 6337985), (5, 3802791), (15, 1267597), (41, 463755), (43, 442185), (123, 154585), (129, 147395), (205, 92751), (215, 88437), (615, 30917), (645, 29479), (719, 26445), (1763, 10785), (2157, 8815), (3595, 5289)]