20346880491

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{773}}^1\times {\mathrm{3511}}^1$

素因数の和:4321

約数の個数: 72

約数和(自身を含む): 36256525344

約数和(自身を除く): 15909644853

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 357, 441, 773, 833, 1071, 2319, 2499, 3511, 5411, 6957, 7497, 10533, 13141, 16233, 24577, 31599, 37877, 39423, 48699, 59687, 73731, 91987, 113631, 118269, 172039, 179061, 221193, 275961, 340893, 417809, 516117, 537183, 643909, 827883, 1253427, 1548351, 1931727, 2714003, 2924663, 3760281, 5795181, 8142009, 8773989, 18998021, 24426027, 26321967, 46138051, 56994063, 132986147, 138414153, 170982189, 322966357, 398958441, 415242459, 968899071, 1196875323, 2260764499, 2906697213, 6782293497, 20346880491]

約数ペア:

[(1, 20346880491), (3, 6782293497), (7, 2906697213), (9, 2260764499), (17, 1196875323), (21, 968899071), (49, 415242459), (51, 398958441), (63, 322966357), (119, 170982189), (147, 138414153), (153, 132986147), (357, 56994063), (441, 46138051), (773, 26321967), (833, 24426027), (1071, 18998021), (2319, 8773989), (2499, 8142009), (3511, 5795181), (5411, 3760281), (6957, 2924663), (7497, 2714003), (10533, 1931727), (13141, 1548351), (16233, 1253427), (24577, 827883), (31599, 643909), (37877, 537183), (39423, 516117), (48699, 417809), (59687, 340893), (73731, 275961), (91987, 221193), (113631, 179061), (118269, 172039)]