19854291

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^2\times {\mathrm{127}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 28229632

約数和(自身を除く): 8375341

約数列:

[1, 3, 31, 41, 93, 123, 127, 381, 1271, 1681, 3813, 3937, 5043, 5207, 11811, 15621, 52111, 156333, 161417, 213487, 484251, 640461, 6618097, 19854291]

約数ペア:

[(1, 19854291), (3, 6618097), (31, 640461), (41, 484251), (93, 213487), (123, 161417), (127, 156333), (381, 52111), (1271, 15621), (1681, 11811), (3813, 5207), (3937, 5043)]