21216408

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:524

約数の個数: 64

約数和(自身を含む): 56700000

約数和(自身を除く): 35483592

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 149, 204, 298, 349, 408, 447, 596, 698, 894, 1047, 1192, 1396, 1788, 2094, 2533, 2792, 3576, 4188, 5066, 5933, 7599, 8376, 10132, 11866, 15198, 17799, 20264, 23732, 30396, 35598, 47464, 52001, 60792, 71196, 104002, 142392, 156003, 208004, 312006, 416008, 624012, 884017, 1248024, 1768034, 2652051, 3536068, 5304102, 7072136, 10608204, 21216408]

約数ペア:

[(1, 21216408), (2, 10608204), (3, 7072136), (4, 5304102), (6, 3536068), (8, 2652051), (12, 1768034), (17, 1248024), (24, 884017), (34, 624012), (51, 416008), (68, 312006), (102, 208004), (136, 156003), (149, 142392), (204, 104002), (298, 71196), (349, 60792), (408, 52001), (447, 47464), (596, 35598), (698, 30396), (894, 23732), (1047, 20264), (1192, 17799), (1396, 15198), (1788, 11866), (2094, 10132), (2533, 8376), (2792, 7599), (3576, 5933), (4188, 5066)]