20409135

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{3769}}^1$

素因数の和:3815

約数の個数: 24

約数和(自身を含む): 34472880

約数和(自身を除く): 14063745

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 361, 1083, 1805, 3769, 5415, 11307, 18845, 56535, 71611, 214833, 358055, 1074165, 1360609, 4081827, 6803045, 20409135]

約数ペア:

[(1, 20409135), (3, 6803045), (5, 4081827), (15, 1360609), (19, 1074165), (57, 358055), (95, 214833), (285, 71611), (361, 56535), (1083, 18845), (1805, 11307), (3769, 5415)]