21152313

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8609}}^1$

素因数の和:8638

約数の個数: 32

約数和(自身を含む): 38572800

約数和(自身を除く): 17420487

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8609, 25827, 60263, 77481, 111917, 180789, 232443, 335751, 542367, 783419, 1007253, 1627101, 2350257, 3021759, 7050771, 21152313]

約数ペア:

[(1, 21152313), (3, 7050771), (7, 3021759), (9, 2350257), (13, 1627101), (21, 1007253), (27, 783419), (39, 542367), (63, 335751), (91, 232443), (117, 180789), (189, 111917), (273, 77481), (351, 60263), (819, 25827), (2457, 8609)]