19870395

素因数分解:

$3^1\times 5^1\times {\mathrm{613}}^1\times {\mathrm{2161}}^1$

素因数の和:2782

約数の個数: 16

約数和(自身を含む): 31859232

約数和(自身を除く): 11988837

約数列:

[1, 3, 5, 15, 613, 1839, 2161, 3065, 6483, 9195, 10805, 32415, 1324693, 3974079, 6623465, 19870395]

約数ペア:

[(1, 19870395), (3, 6623465), (5, 3974079), (15, 1324693), (613, 32415), (1839, 10805), (2161, 9195), (3065, 6483)]