20154202677

素因数分解:

$3^4\times 7^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1\times {\mathrm{1777}}^1$

素因数の和:2120

約数の個数: 80

約数和(自身を含む): 34986602112

約数和(自身を除く): 14832399435

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 83, 189, 241, 249, 567, 581, 723, 747, 1687, 1743, 1777, 2169, 2241, 5061, 5229, 5331, 6507, 6723, 12439, 15183, 15687, 15993, 19521, 20003, 37317, 45549, 47061, 47979, 60009, 111951, 136647, 140021, 143937, 147491, 180027, 335853, 420063, 428257, 442473, 540081, 1007559, 1032437, 1260189, 1284771, 1327419, 1620243, 2997799, 3097311, 3780567, 3854313, 3982257, 8993397, 9291933, 11341701, 11562939, 11946771, 26980191, 27875799, 34688817, 35545331, 80940573, 83627397, 106635993, 242821719, 248817317, 319907979, 746451951, 959723937, 2239355853, 2879171811, 6718067559, 20154202677]

約数ペア:

[(1, 20154202677), (3, 6718067559), (7, 2879171811), (9, 2239355853), (21, 959723937), (27, 746451951), (63, 319907979), (81, 248817317), (83, 242821719), (189, 106635993), (241, 83627397), (249, 80940573), (567, 35545331), (581, 34688817), (723, 27875799), (747, 26980191), (1687, 11946771), (1743, 11562939), (1777, 11341701), (2169, 9291933), (2241, 8993397), (5061, 3982257), (5229, 3854313), (5331, 3780567), (6507, 3097311), (6723, 2997799), (12439, 1620243), (15183, 1327419), (15687, 1284771), (15993, 1260189), (19521, 1032437), (20003, 1007559), (37317, 540081), (45549, 442473), (47061, 428257), (47979, 420063), (60009, 335853), (111951, 180027), (136647, 147491), (140021, 143937)]