21412240

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{14087}}^1$

素因数の和:14119

約数の個数: 40

約数和(自身を含む): 52407360

約数和(自身を除く): 30995120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 14087, 28174, 56348, 70435, 112696, 140870, 225392, 267653, 281740, 535306, 563480, 1070612, 1126960, 1338265, 2141224, 2676530, 4282448, 5353060, 10706120, 21412240]

約数ペア:

[(1, 21412240), (2, 10706120), (4, 5353060), (5, 4282448), (8, 2676530), (10, 2141224), (16, 1338265), (19, 1126960), (20, 1070612), (38, 563480), (40, 535306), (76, 281740), (80, 267653), (95, 225392), (152, 140870), (190, 112696), (304, 70435), (380, 56348), (760, 28174), (1520, 14087)]