18510903

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{503}}^1$

素因数の和:588

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 10519497

約数列:

[1, 3, 9, 27, 29, 47, 87, 141, 261, 423, 503, 783, 1269, 1363, 1509, 4089, 4527, 12267, 13581, 14587, 23641, 36801, 43761, 70923, 131283, 212769, 393849, 638307, 685589, 2056767, 6170301, 18510903]

約数ペア:

[(1, 18510903), (3, 6170301), (9, 2056767), (27, 685589), (29, 638307), (47, 393849), (87, 212769), (141, 131283), (261, 70923), (423, 43761), (503, 36801), (783, 23641), (1269, 14587), (1363, 13581), (1509, 12267), (4089, 4527)]