21670760

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{11527}}^1$

素因数の和:11585

約数の個数: 32

約数和(自身を含む): 49800960

約数和(自身を除く): 28130200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 11527, 23054, 46108, 57635, 92216, 115270, 230540, 461080, 541769, 1083538, 2167076, 2708845, 4334152, 5417690, 10835380, 21670760]

約数ペア:

[(1, 21670760), (2, 10835380), (4, 5417690), (5, 4334152), (8, 2708845), (10, 2167076), (20, 1083538), (40, 541769), (47, 461080), (94, 230540), (188, 115270), (235, 92216), (376, 57635), (470, 46108), (940, 23054), (1880, 11527)]