1389915

素因数分解:

$3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{461}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 2450448

約数和(自身を除く): 1060533

約数列:

[1, 3, 5, 9, 15, 45, 67, 201, 335, 461, 603, 1005, 1383, 2305, 3015, 4149, 6915, 20745, 30887, 92661, 154435, 277983, 463305, 1389915]

約数ペア:

[(1, 1389915), (3, 463305), (5, 277983), (9, 154435), (15, 92661), (45, 30887), (67, 20745), (201, 6915), (335, 4149), (461, 3015), (603, 2305), (1005, 1383)]