18909711

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{1367}}^1$

素因数の和:1455

約数の個数: 24

約数和(自身を含む): 28810080

約数和(自身を除く): 9900369

約数列:

[1, 3, 9, 29, 53, 87, 159, 261, 477, 1367, 1537, 4101, 4611, 12303, 13833, 39643, 72451, 118929, 217353, 356787, 652059, 2101079, 6303237, 18909711]

約数ペア:

[(1, 18909711), (3, 6303237), (9, 2101079), (29, 652059), (53, 356787), (87, 217353), (159, 118929), (261, 72451), (477, 39643), (1367, 13833), (1537, 12303), (4101, 4611)]