21421080

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{379}}^1$

素因数の和:553

約数の個数: 96

約数和(自身を含む): 70246800

約数和(自身を除く): 48825720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 157, 180, 314, 360, 379, 471, 628, 758, 785, 942, 1137, 1256, 1413, 1516, 1570, 1884, 1895, 2274, 2355, 2826, 3032, 3140, 3411, 3768, 3790, 4548, 4710, 5652, 5685, 6280, 6822, 7065, 7580, 9096, 9420, 11304, 11370, 13644, 14130, 15160, 17055, 18840, 22740, 27288, 28260, 34110, 45480, 56520, 59503, 68220, 119006, 136440, 178509, 238012, 297515, 357018, 476024, 535527, 595030, 714036, 892545, 1071054, 1190060, 1428072, 1785090, 2142108, 2380120, 2677635, 3570180, 4284216, 5355270, 7140360, 10710540, 21421080]

約数ペア:

[(1, 21421080), (2, 10710540), (3, 7140360), (4, 5355270), (5, 4284216), (6, 3570180), (8, 2677635), (9, 2380120), (10, 2142108), (12, 1785090), (15, 1428072), (18, 1190060), (20, 1071054), (24, 892545), (30, 714036), (36, 595030), (40, 535527), (45, 476024), (60, 357018), (72, 297515), (90, 238012), (120, 178509), (157, 136440), (180, 119006), (314, 68220), (360, 59503), (379, 56520), (471, 45480), (628, 34110), (758, 28260), (785, 27288), (942, 22740), (1137, 18840), (1256, 17055), (1413, 15160), (1516, 14130), (1570, 13644), (1884, 11370), (1895, 11304), (2274, 9420), (2355, 9096), (2826, 7580), (3032, 7065), (3140, 6822), (3411, 6280), (3768, 5685), (3790, 5652), (4548, 4710)]