21653144

素因数分解:

$2^3\times {\mathrm{503}}^1\times {\mathrm{5381}}^1$

素因数の和:5890

約数の個数: 16

約数和(自身を含む): 40687920

約数和(自身を除く): 19034776

約数列:

[1, 2, 4, 8, 503, 1006, 2012, 4024, 5381, 10762, 21524, 43048, 2706643, 5413286, 10826572, 21653144]

約数ペア:

[(1, 21653144), (2, 10826572), (4, 5413286), (8, 2706643), (503, 43048), (1006, 21524), (2012, 10762), (4024, 5381)]