18642879

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:201

約数の個数: 40

約数和(自身を含む): 29272320

約数和(自身を除く): 10629441

約数列:

[1, 3, 9, 27, 47, 59, 81, 83, 141, 177, 249, 423, 531, 747, 1269, 1593, 2241, 2773, 3807, 3901, 4779, 4897, 6723, 8319, 11703, 14691, 24957, 35109, 44073, 74871, 105327, 132219, 224613, 230159, 315981, 396657, 690477, 2071431, 6214293, 18642879]

約数ペア:

[(1, 18642879), (3, 6214293), (9, 2071431), (27, 690477), (47, 396657), (59, 315981), (81, 230159), (83, 224613), (141, 132219), (177, 105327), (249, 74871), (423, 44073), (531, 35109), (747, 24957), (1269, 14691), (1593, 11703), (2241, 8319), (2773, 6723), (3807, 4897), (3901, 4779)]