21329350

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{409}}^1$

素因数の和:577

約数の個数: 48

約数和(自身を含む): 45756000

約数和(自身を除く): 24426650

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 149, 175, 298, 350, 409, 745, 818, 1043, 1490, 2045, 2086, 2863, 3725, 4090, 5215, 5726, 7450, 10225, 10430, 14315, 20450, 26075, 28630, 52150, 60941, 71575, 121882, 143150, 304705, 426587, 609410, 853174, 1523525, 2132935, 3047050, 4265870, 10664675, 21329350]

約数ペア:

[(1, 21329350), (2, 10664675), (5, 4265870), (7, 3047050), (10, 2132935), (14, 1523525), (25, 853174), (35, 609410), (50, 426587), (70, 304705), (149, 143150), (175, 121882), (298, 71575), (350, 60941), (409, 52150), (745, 28630), (818, 26075), (1043, 20450), (1490, 14315), (2045, 10430), (2086, 10225), (2863, 7450), (3725, 5726), (4090, 5215)]