21184260

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{797}}^1$

素因数の和:1252

約数の個数: 48

約数和(自身を含む): 59524416

約数和(自身を除く): 38340156

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 443, 797, 886, 1329, 1594, 1772, 2215, 2391, 2658, 3188, 3985, 4430, 4782, 5316, 6645, 7970, 8860, 9564, 11955, 13290, 15940, 23910, 26580, 47820, 353071, 706142, 1059213, 1412284, 1765355, 2118426, 3530710, 4236852, 5296065, 7061420, 10592130, 21184260]

約数ペア:

[(1, 21184260), (2, 10592130), (3, 7061420), (4, 5296065), (5, 4236852), (6, 3530710), (10, 2118426), (12, 1765355), (15, 1412284), (20, 1059213), (30, 706142), (60, 353071), (443, 47820), (797, 26580), (886, 23910), (1329, 15940), (1594, 13290), (1772, 11955), (2215, 9564), (2391, 8860), (2658, 7970), (3188, 6645), (3985, 5316), (4430, 4782)]