21682625

素因数分解:

$5^3\times {\mathrm{89}}^1\times {\mathrm{1949}}^1$

素因数の和:2053

約数の個数: 16

約数和(自身を含む): 27378000

約数和(自身を除く): 5695375

約数列:

[1, 5, 25, 89, 125, 445, 1949, 2225, 9745, 11125, 48725, 173461, 243625, 867305, 4336525, 21682625]

約数ペア:

[(1, 21682625), (5, 4336525), (25, 867305), (89, 243625), (125, 173461), (445, 48725), (1949, 11125), (2225, 9745)]