21868240

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{14387}}^1$

素因数の和:14419

約数の個数: 40

約数和(自身を含む): 53523360

約数和(自身を除く): 31655120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 14387, 28774, 57548, 71935, 115096, 143870, 230192, 273353, 287740, 546706, 575480, 1093412, 1150960, 1366765, 2186824, 2733530, 4373648, 5467060, 10934120, 21868240]

約数ペア:

[(1, 21868240), (2, 10934120), (4, 5467060), (5, 4373648), (8, 2733530), (10, 2186824), (16, 1366765), (19, 1150960), (20, 1093412), (38, 575480), (40, 546706), (76, 287740), (80, 273353), (95, 230192), (152, 143870), (190, 115096), (304, 71935), (380, 57548), (760, 28774), (1520, 14387)]