18105879

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 28200960

約数和(自身を除く): 10095081

約数列:

[1, 3, 11, 19, 33, 57, 67, 201, 209, 431, 627, 737, 1273, 1293, 2211, 3819, 4741, 8189, 14003, 14223, 24567, 28877, 42009, 86631, 90079, 270237, 317647, 548663, 952941, 1645989, 6035293, 18105879]

約数ペア:

[(1, 18105879), (3, 6035293), (11, 1645989), (19, 952941), (33, 548663), (57, 317647), (67, 270237), (201, 90079), (209, 86631), (431, 42009), (627, 28877), (737, 24567), (1273, 14223), (1293, 14003), (2211, 8189), (3819, 4741)]