21492275

素因数分解:

$5^2\times 7^1\times {\mathrm{191}}^1\times {\mathrm{643}}^1$

素因数の和:851

約数の個数: 24

約数和(自身を含む): 30664704

約数和(自身を除く): 9172429

約数列:

[1, 5, 7, 25, 35, 175, 191, 643, 955, 1337, 3215, 4501, 4775, 6685, 16075, 22505, 33425, 112525, 122813, 614065, 859691, 3070325, 4298455, 21492275]

約数ペア:

[(1, 21492275), (5, 4298455), (7, 3070325), (25, 859691), (35, 614065), (175, 122813), (191, 112525), (643, 33425), (955, 22505), (1337, 16075), (3215, 6685), (4501, 4775)]