18623085

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2221}}^1$

素因数の和:2285

約数の個数: 32

約数和(自身を含む): 32850048

約数和(自身を除く): 14226963

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 559, 645, 1677, 2221, 2795, 6663, 8385, 11105, 28873, 33315, 86619, 95503, 144365, 286509, 433095, 477515, 1241539, 1432545, 3724617, 6207695, 18623085]

約数ペア:

[(1, 18623085), (3, 6207695), (5, 3724617), (13, 1432545), (15, 1241539), (39, 477515), (43, 433095), (65, 286509), (129, 144365), (195, 95503), (215, 86619), (559, 33315), (645, 28873), (1677, 11105), (2221, 8385), (2795, 6663)]