20920518

素因数分解:

$2^1\times 3^4\times {\mathrm{89}}^1\times {\mathrm{1451}}^1$

素因数の和:1554

約数の個数: 40

約数和(自身を含む): 47436840

約数和(自身を除く): 26516322

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 89, 162, 178, 267, 534, 801, 1451, 1602, 2403, 2902, 4353, 4806, 7209, 8706, 13059, 14418, 26118, 39177, 78354, 117531, 129139, 235062, 258278, 387417, 774834, 1162251, 2324502, 3486753, 6973506, 10460259, 20920518]

約数ペア:

[(1, 20920518), (2, 10460259), (3, 6973506), (6, 3486753), (9, 2324502), (18, 1162251), (27, 774834), (54, 387417), (81, 258278), (89, 235062), (162, 129139), (178, 117531), (267, 78354), (534, 39177), (801, 26118), (1451, 14418), (1602, 13059), (2403, 8706), (2902, 7209), (4353, 4806)]