18463641

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 30818304

約数和(自身を除く): 12354663

約数列:

[1, 3, 7, 21, 23, 43, 49, 69, 127, 129, 147, 161, 301, 381, 483, 889, 903, 989, 1127, 2107, 2667, 2921, 2967, 3381, 5461, 6223, 6321, 6923, 8763, 16383, 18669, 20447, 20769, 38227, 48461, 61341, 114681, 125603, 143129, 145383, 267589, 376809, 429387, 802767, 879221, 2637663, 6154547, 18463641]

約数ペア:

[(1, 18463641), (3, 6154547), (7, 2637663), (21, 879221), (23, 802767), (43, 429387), (49, 376809), (69, 267589), (127, 145383), (129, 143129), (147, 125603), (161, 114681), (301, 61341), (381, 48461), (483, 38227), (889, 20769), (903, 20447), (989, 18669), (1127, 16383), (2107, 8763), (2667, 6923), (2921, 6321), (2967, 6223), (3381, 5461)]