21000718480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37501283}}^1$

素因数の和:37501303

約数の個数: 40

約数和(自身を含む): 55801910592

約数和(自身を除く): 34801192112

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37501283, 75002566, 150005132, 187506415, 262508981, 300010264, 375012830, 525017962, 600020528, 750025660, 1050035924, 1312544905, 1500051320, 2100071848, 2625089810, 3000102640, 4200143696, 5250179620, 10500359240, 21000718480]

約数ペア:

[(1, 21000718480), (2, 10500359240), (4, 5250179620), (5, 4200143696), (7, 3000102640), (8, 2625089810), (10, 2100071848), (14, 1500051320), (16, 1312544905), (20, 1050035924), (28, 750025660), (35, 600020528), (40, 525017962), (56, 375012830), (70, 300010264), (80, 262508981), (112, 187506415), (140, 150005132), (280, 75002566), (560, 37501283)]