28166721

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{269}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 15378879

約数列:

[1, 3, 11, 19, 33, 57, 167, 209, 269, 501, 627, 807, 1837, 2959, 3173, 5111, 5511, 8877, 9519, 15333, 34903, 44923, 56221, 104709, 134769, 168663, 494153, 853537, 1482459, 2560611, 9388907, 28166721]

約数ペア:

[(1, 28166721), (3, 9388907), (11, 2560611), (19, 1482459), (33, 853537), (57, 494153), (167, 168663), (209, 134769), (269, 104709), (501, 56221), (627, 44923), (807, 34903), (1837, 15333), (2959, 9519), (3173, 8877), (5111, 5511)]