19913205

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{6007}}^1$

素因数の和:6045

約数の個数: 32

約数和(自身を含む): 36336384

約数和(自身を除く): 16423179

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 6007, 18021, 30035, 78091, 90105, 102119, 234273, 306357, 390455, 510595, 1171365, 1327547, 1531785, 3982641, 6637735, 19913205]

約数ペア:

[(1, 19913205), (3, 6637735), (5, 3982641), (13, 1531785), (15, 1327547), (17, 1171365), (39, 510595), (51, 390455), (65, 306357), (85, 234273), (195, 102119), (221, 90105), (255, 78091), (663, 30035), (1105, 18021), (3315, 6007)]