19215105

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2011}}^1$

素因数の和:2046

約数の個数: 48

約数和(自身を含む): 38533824

約数和(自身を除く): 19318719

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 49, 65, 91, 105, 147, 195, 245, 273, 455, 637, 735, 1365, 1911, 2011, 3185, 6033, 9555, 10055, 14077, 26143, 30165, 42231, 70385, 78429, 98539, 130715, 183001, 211155, 295617, 392145, 492695, 549003, 915005, 1281007, 1478085, 2745015, 3843021, 6405035, 19215105]

約数ペア:

[(1, 19215105), (3, 6405035), (5, 3843021), (7, 2745015), (13, 1478085), (15, 1281007), (21, 915005), (35, 549003), (39, 492695), (49, 392145), (65, 295617), (91, 211155), (105, 183001), (147, 130715), (195, 98539), (245, 78429), (273, 70385), (455, 42231), (637, 30165), (735, 26143), (1365, 14077), (1911, 10055), (2011, 9555), (3185, 6033)]