21845420

素因数分解:

$2^2\times 5^1\times {\mathrm{883}}^1\times {\mathrm{1237}}^1$

素因数の和:2129

約数の個数: 24

約数和(自身を含む): 45964464

約数和(自身を除く): 24119044

約数列:

[1, 2, 4, 5, 10, 20, 883, 1237, 1766, 2474, 3532, 4415, 4948, 6185, 8830, 12370, 17660, 24740, 1092271, 2184542, 4369084, 5461355, 10922710, 21845420]

約数ペア:

[(1, 21845420), (2, 10922710), (4, 5461355), (5, 4369084), (10, 2184542), (20, 1092271), (883, 24740), (1237, 17660), (1766, 12370), (2474, 8830), (3532, 6185), (4415, 4948)]