27988359

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{4051}}^1$

素因数の和:4115

約数の個数: 24

約数和(自身を含む): 44345088

約数和(自身を除く): 16356729

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 4051, 6909, 12153, 28357, 85071, 190397, 198499, 571191, 595497, 1332779, 3998337, 9329453, 27988359]

約数ペア:

[(1, 27988359), (3, 9329453), (7, 3998337), (21, 1332779), (47, 595497), (49, 571191), (141, 198499), (147, 190397), (329, 85071), (987, 28357), (2303, 12153), (4051, 6909)]