18568431

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6271}}^1$

素因数の和:6331

約数の個数: 24

約数和(自身を含む): 31309824

約数和(自身を除く): 12741393

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 6271, 18813, 43897, 56439, 131691, 294737, 395073, 884211, 2063159, 2652633, 6189477, 18568431]

約数ペア:

[(1, 18568431), (3, 6189477), (7, 2652633), (9, 2063159), (21, 884211), (47, 395073), (63, 294737), (141, 131691), (329, 56439), (423, 43897), (987, 18813), (2961, 6271)]