21869260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5039}}^1$

素因数の和:5086

約数の個数: 48

約数和(自身を含む): 54190080

約数和(自身を除く): 32320820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 5039, 10078, 20156, 25195, 35273, 50390, 70546, 100780, 141092, 156209, 176365, 312418, 352730, 624836, 705460, 781045, 1093463, 1562090, 2186926, 3124180, 4373852, 5467315, 10934630, 21869260]

約数ペア:

[(1, 21869260), (2, 10934630), (4, 5467315), (5, 4373852), (7, 3124180), (10, 2186926), (14, 1562090), (20, 1093463), (28, 781045), (31, 705460), (35, 624836), (62, 352730), (70, 312418), (124, 176365), (140, 156209), (155, 141092), (217, 100780), (310, 70546), (434, 50390), (620, 35273), (868, 25195), (1085, 20156), (2170, 10078), (4340, 5039)]