21836120

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{4831}}^1$

素因数の和:4955

約数の個数: 32

約数和(自身を含む): 49576320

約数和(自身を除く): 27740200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 4831, 9662, 19324, 24155, 38648, 48310, 96620, 193240, 545903, 1091806, 2183612, 2729515, 4367224, 5459030, 10918060, 21836120]

約数ペア:

[(1, 21836120), (2, 10918060), (4, 5459030), (5, 4367224), (8, 2729515), (10, 2183612), (20, 1091806), (40, 545903), (113, 193240), (226, 96620), (452, 48310), (565, 38648), (904, 24155), (1130, 19324), (2260, 9662), (4520, 4831)]