21342530

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{773}}^1$

素因数の和:1042

約数の個数: 32

約数和(自身を含む): 42130368

約数和(自身を除く): 20787838

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 251, 502, 773, 1255, 1546, 2510, 2761, 3865, 5522, 7730, 8503, 13805, 17006, 27610, 42515, 85030, 194023, 388046, 970115, 1940230, 2134253, 4268506, 10671265, 21342530]

約数ペア:

[(1, 21342530), (2, 10671265), (5, 4268506), (10, 2134253), (11, 1940230), (22, 970115), (55, 388046), (110, 194023), (251, 85030), (502, 42515), (773, 27610), (1255, 17006), (1546, 13805), (2510, 8503), (2761, 7730), (3865, 5522)]