18137535

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1979}}^1$

素因数の和:2047

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 13795905

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1833, 1979, 3055, 5937, 9165, 9895, 25727, 29685, 77181, 93013, 128635, 279039, 385905, 465065, 1209169, 1395195, 3627507, 6045845, 18137535]

約数ペア:

[(1, 18137535), (3, 6045845), (5, 3627507), (13, 1395195), (15, 1209169), (39, 465065), (47, 385905), (65, 279039), (141, 128635), (195, 93013), (235, 77181), (611, 29685), (705, 25727), (1833, 9895), (1979, 9165), (3055, 5937)]