20565681423

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{311}}^1\times {\mathrm{1093}}^1$

素因数の和:1524

約数の個数: 64

約数和(自身を含む): 32680108032

約数和(自身を除く): 12114426609

約数列:

[1, 3, 7, 21, 43, 67, 129, 201, 301, 311, 469, 903, 933, 1093, 1407, 2177, 2881, 3279, 6531, 7651, 8643, 13373, 20167, 20837, 22953, 40119, 46999, 60501, 62511, 73231, 93611, 140997, 145859, 219693, 280833, 328993, 339923, 437577, 512617, 895991, 986979, 1019769, 1537851, 2379461, 2687973, 3148933, 6271937, 7138383, 9446799, 14616689, 18815811, 22042531, 22774841, 43850067, 66127593, 68324523, 102316823, 159423887, 306950469, 478271661, 979318163, 2937954489, 6855227141, 20565681423]

約数ペア:

[(1, 20565681423), (3, 6855227141), (7, 2937954489), (21, 979318163), (43, 478271661), (67, 306950469), (129, 159423887), (201, 102316823), (301, 68324523), (311, 66127593), (469, 43850067), (903, 22774841), (933, 22042531), (1093, 18815811), (1407, 14616689), (2177, 9446799), (2881, 7138383), (3279, 6271937), (6531, 3148933), (7651, 2687973), (8643, 2379461), (13373, 1537851), (20167, 1019769), (20837, 986979), (22953, 895991), (40119, 512617), (46999, 437577), (60501, 339923), (62511, 328993), (73231, 280833), (93611, 219693), (140997, 145859)]