20891718

素因数分解:

$2^1\times 3^2\times {\mathrm{227}}^1\times {\mathrm{5113}}^1$

素因数の和:5348

約数の個数: 24

約数和(自身を含む): 45473688

約数和(自身を除く): 24581970

約数列:

[1, 2, 3, 6, 9, 18, 227, 454, 681, 1362, 2043, 4086, 5113, 10226, 15339, 30678, 46017, 92034, 1160651, 2321302, 3481953, 6963906, 10445859, 20891718]

約数ペア:

[(1, 20891718), (2, 10445859), (3, 6963906), (6, 3481953), (9, 2321302), (18, 1160651), (227, 92034), (454, 46017), (681, 30678), (1362, 15339), (2043, 10226), (4086, 5113)]