21445180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{34589}}^1$

素因数の和:34629

約数の個数: 24

約数和(自身を含む): 46488960

約数和(自身を除く): 25043780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 34589, 69178, 138356, 172945, 345890, 691780, 1072259, 2144518, 4289036, 5361295, 10722590, 21445180]

約数ペア:

[(1, 21445180), (2, 10722590), (4, 5361295), (5, 4289036), (10, 2144518), (20, 1072259), (31, 691780), (62, 345890), (124, 172945), (155, 138356), (310, 69178), (620, 34589)]