21204693

素因数分解:

$3^3\times {\mathrm{181}}^1\times {\mathrm{4339}}^1$

素因数の和:4529

約数の個数: 16

約数和(自身を含む): 31595200

約数和(自身を除く): 10390507

約数列:

[1, 3, 9, 27, 181, 543, 1629, 4339, 4887, 13017, 39051, 117153, 785359, 2356077, 7068231, 21204693]

約数ペア:

[(1, 21204693), (3, 7068231), (9, 2356077), (27, 785359), (181, 117153), (543, 39051), (1629, 13017), (4339, 4887)]