18814089

素因数分解:

$3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{977}}^1$

素因数の和:1125

約数の個数: 24

約数和(自身を含む): 29433888

約数和(自身を除く): 10619799

約数列:

[1, 3, 7, 21, 49, 131, 147, 393, 917, 977, 2751, 2931, 6419, 6839, 19257, 20517, 47873, 127987, 143619, 383961, 895909, 2687727, 6271363, 18814089]

約数ペア:

[(1, 18814089), (3, 6271363), (7, 2687727), (21, 895909), (49, 383961), (131, 143619), (147, 127987), (393, 47873), (917, 20517), (977, 19257), (2751, 6839), (2931, 6419)]