21869020

素因数分解:

$2^2\times 5^1\times {\mathrm{829}}^1\times {\mathrm{1319}}^1$

素因数の和:2157

約数の個数: 24

約数和(自身を含む): 46015200

約数和(自身を除く): 24146180

約数列:

[1, 2, 4, 5, 10, 20, 829, 1319, 1658, 2638, 3316, 4145, 5276, 6595, 8290, 13190, 16580, 26380, 1093451, 2186902, 4373804, 5467255, 10934510, 21869020]

約数ペア:

[(1, 21869020), (2, 10934510), (4, 5467255), (5, 4373804), (10, 2186902), (20, 1093451), (829, 26380), (1319, 16580), (1658, 13190), (2638, 8290), (3316, 6595), (4145, 5276)]