18961850

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{6217}}^1$

素因数の和:6290

約数の個数: 24

約数和(自身を含む): 35852988

約数和(自身を除く): 16891138

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 305, 610, 1525, 3050, 6217, 12434, 31085, 62170, 155425, 310850, 379237, 758474, 1896185, 3792370, 9480925, 18961850]

約数ペア:

[(1, 18961850), (2, 9480925), (5, 3792370), (10, 1896185), (25, 758474), (50, 379237), (61, 310850), (122, 155425), (305, 62170), (610, 31085), (1525, 12434), (3050, 6217)]