18450117

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 34572096

約数和(自身を除く): 16121979

約数列:

[1, 3, 7, 9, 17, 21, 23, 49, 51, 63, 69, 107, 119, 147, 153, 161, 207, 321, 357, 391, 441, 483, 749, 833, 963, 1071, 1127, 1173, 1449, 1819, 2247, 2461, 2499, 2737, 3381, 3519, 5243, 5457, 6741, 7383, 7497, 8211, 10143, 12733, 15729, 16371, 17227, 19159, 22149, 24633, 38199, 41837, 47187, 51681, 57477, 89131, 114597, 120589, 125511, 155043, 172431, 267393, 292859, 361767, 376533, 802179, 878577, 1085301, 2050013, 2635731, 6150039, 18450117]

約数ペア:

[(1, 18450117), (3, 6150039), (7, 2635731), (9, 2050013), (17, 1085301), (21, 878577), (23, 802179), (49, 376533), (51, 361767), (63, 292859), (69, 267393), (107, 172431), (119, 155043), (147, 125511), (153, 120589), (161, 114597), (207, 89131), (321, 57477), (357, 51681), (391, 47187), (441, 41837), (483, 38199), (749, 24633), (833, 22149), (963, 19159), (1071, 17227), (1127, 16371), (1173, 15729), (1449, 12733), (1819, 10143), (2247, 8211), (2461, 7497), (2499, 7383), (2737, 6741), (3381, 5457), (3519, 5243)]