18311267709

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{6571}}^1$

素因数の和:6751

約数の個数: 72

約数和(自身を含む): 31556640960

約数和(自身を除く): 13245373251

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 89, 147, 213, 267, 441, 497, 623, 639, 801, 1491, 1869, 3479, 4361, 4473, 5607, 6319, 6571, 10437, 13083, 18957, 19713, 31311, 39249, 44233, 45997, 56871, 59139, 132699, 137991, 309631, 321979, 398097, 413973, 466541, 584819, 928893, 965937, 1399623, 1754457, 2786679, 2897811, 3265787, 4093733, 4198869, 5263371, 9797361, 12281199, 22860509, 28656131, 29392083, 36843597, 41522149, 68581527, 85968393, 124566447, 205744581, 257905179, 290655043, 373699341, 871965129, 2034585301, 2615895387, 6103755903, 18311267709]

約数ペア:

[(1, 18311267709), (3, 6103755903), (7, 2615895387), (9, 2034585301), (21, 871965129), (49, 373699341), (63, 290655043), (71, 257905179), (89, 205744581), (147, 124566447), (213, 85968393), (267, 68581527), (441, 41522149), (497, 36843597), (623, 29392083), (639, 28656131), (801, 22860509), (1491, 12281199), (1869, 9797361), (3479, 5263371), (4361, 4198869), (4473, 4093733), (5607, 3265787), (6319, 2897811), (6571, 2786679), (10437, 1754457), (13083, 1399623), (18957, 965937), (19713, 928893), (31311, 584819), (39249, 466541), (44233, 413973), (45997, 398097), (56871, 321979), (59139, 309631), (132699, 137991)]