19802349

素因数分解:

$3^2\times 7^1\times {\mathrm{523}}^1\times {\mathrm{601}}^1$

素因数の和:1137

約数の個数: 24

約数和(自身を含む): 32806592

約数和(自身を除く): 13004243

約数列:

[1, 3, 7, 9, 21, 63, 523, 601, 1569, 1803, 3661, 4207, 4707, 5409, 10983, 12621, 32949, 37863, 314323, 942969, 2200261, 2828907, 6600783, 19802349]

約数ペア:

[(1, 19802349), (3, 6600783), (7, 2828907), (9, 2200261), (21, 942969), (63, 314323), (523, 37863), (601, 32949), (1569, 12621), (1803, 10983), (3661, 5409), (4207, 4707)]