28154007

素因数分解:

$3^3\times 7^1\times {\mathrm{181}}^1\times {\mathrm{823}}^1$

素因数の和:1020

約数の個数: 32

約数和(自身を含む): 47989760

約数和(自身を除く): 19835753

約数列:

[1, 3, 7, 9, 21, 27, 63, 181, 189, 543, 823, 1267, 1629, 2469, 3801, 4887, 5761, 7407, 11403, 17283, 22221, 34209, 51849, 148963, 155547, 446889, 1042741, 1340667, 3128223, 4022001, 9384669, 28154007]

約数ペア:

[(1, 28154007), (3, 9384669), (7, 4022001), (9, 3128223), (21, 1340667), (27, 1042741), (63, 446889), (181, 155547), (189, 148963), (543, 51849), (823, 34209), (1267, 22221), (1629, 17283), (2469, 11403), (3801, 7407), (4887, 5761)]