890109

素因数分解:

$3^7\times {\mathrm{11}}^1\times {\mathrm{37}}^1$

素因数の和:69

約数の個数: 32

約数和(自身を含む): 1495680

約数和(自身を除く): 605571

約数列:

[1, 3, 9, 11, 27, 33, 37, 81, 99, 111, 243, 297, 333, 407, 729, 891, 999, 1221, 2187, 2673, 2997, 3663, 8019, 8991, 10989, 24057, 26973, 32967, 80919, 98901, 296703, 890109]

約数ペア:

[(1, 890109), (3, 296703), (9, 98901), (11, 80919), (27, 32967), (33, 26973), (37, 24057), (81, 10989), (99, 8991), (111, 8019), (243, 3663), (297, 2997), (333, 2673), (407, 2187), (729, 1221), (891, 999)]