28395927

素因数分解:

$3^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{821}}^1$

素因数の和:901

約数の個数: 40

約数和(自身を含む): 49333152

約数和(自身を除く): 20937225

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 81, 183, 189, 427, 549, 567, 821, 1281, 1647, 2463, 3843, 4941, 5747, 7389, 11529, 17241, 22167, 34587, 50081, 51723, 66501, 150243, 155169, 350567, 450729, 465507, 1051701, 1352187, 3155103, 4056561, 9465309, 28395927]

約数ペア:

[(1, 28395927), (3, 9465309), (7, 4056561), (9, 3155103), (21, 1352187), (27, 1051701), (61, 465507), (63, 450729), (81, 350567), (183, 155169), (189, 150243), (427, 66501), (549, 51723), (567, 50081), (821, 34587), (1281, 22167), (1647, 17241), (2463, 11529), (3843, 7389), (4941, 5747)]