18947469

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:629

約数の個数: 32

約数和(自身を含む): 28926720

約数和(自身を除く): 9979251

約数列:

[1, 3, 17, 23, 29, 51, 69, 87, 391, 493, 557, 667, 1173, 1479, 1671, 2001, 9469, 11339, 12811, 16153, 28407, 34017, 38433, 48459, 217787, 274601, 371519, 653361, 823803, 1114557, 6315823, 18947469]

約数ペア:

[(1, 18947469), (3, 6315823), (17, 1114557), (23, 823803), (29, 653361), (51, 371519), (69, 274601), (87, 217787), (391, 48459), (493, 38433), (557, 34017), (667, 28407), (1173, 16153), (1479, 12811), (1671, 11339), (2001, 9469)]