20172789

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{24631}}^1$

素因数の和:24657

約数の個数: 24

約数和(自身を含む): 35864192

約数和(自身を除く): 15691403

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 24631, 73893, 172417, 221679, 320203, 517251, 960609, 1551753, 2241421, 2881827, 6724263, 20172789]

約数ペア:

[(1, 20172789), (3, 6724263), (7, 2881827), (9, 2241421), (13, 1551753), (21, 960609), (39, 517251), (63, 320203), (91, 221679), (117, 172417), (273, 73893), (819, 24631)]