18358731

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:261

約数の個数: 40

約数和(自身を含む): 29427200

約数和(自身を除く): 11068469

約数列:

[1, 3, 9, 19, 27, 57, 79, 81, 151, 171, 237, 453, 513, 711, 1359, 1501, 1539, 2133, 2869, 4077, 4503, 6399, 8607, 11929, 12231, 13509, 25821, 35787, 40527, 77463, 107361, 121581, 226651, 232389, 322083, 679953, 966249, 2039859, 6119577, 18358731]

約数ペア:

[(1, 18358731), (3, 6119577), (9, 2039859), (19, 966249), (27, 679953), (57, 322083), (79, 232389), (81, 226651), (151, 121581), (171, 107361), (237, 77463), (453, 40527), (513, 35787), (711, 25821), (1359, 13509), (1501, 12231), (1539, 11929), (2133, 8607), (2869, 6399), (4077, 4503)]