20189145

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{277}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 33466752

約数和(自身を除く): 13277607

約数列:

[1, 3, 5, 15, 43, 113, 129, 215, 277, 339, 565, 645, 831, 1385, 1695, 4155, 4859, 11911, 14577, 24295, 31301, 35733, 59555, 72885, 93903, 156505, 178665, 469515, 1345943, 4037829, 6729715, 20189145]

約数ペア:

[(1, 20189145), (3, 6729715), (5, 4037829), (15, 1345943), (43, 469515), (113, 178665), (129, 156505), (215, 93903), (277, 72885), (339, 59555), (565, 35733), (645, 31301), (831, 24295), (1385, 14577), (1695, 11911), (4155, 4859)]