19378305

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^2$

素因数の和:195

約数の個数: 48

約数和(自身を含む): 36408960

約数和(自身を除く): 17030655

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 79, 115, 135, 207, 237, 345, 395, 621, 711, 1035, 1185, 1817, 2133, 3105, 3555, 5451, 6241, 9085, 10665, 16353, 18723, 27255, 31205, 49059, 56169, 81765, 93615, 143543, 168507, 245295, 280845, 430629, 717715, 842535, 1291887, 2153145, 3875661, 6459435, 19378305]

約数ペア:

[(1, 19378305), (3, 6459435), (5, 3875661), (9, 2153145), (15, 1291887), (23, 842535), (27, 717715), (45, 430629), (69, 280845), (79, 245295), (115, 168507), (135, 143543), (207, 93615), (237, 81765), (345, 56169), (395, 49059), (621, 31205), (711, 27255), (1035, 18723), (1185, 16353), (1817, 10665), (2133, 9085), (3105, 6241), (3555, 5451)]