21711040

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1$

素因数の和:354

約数の個数: 112

約数和(自身を含む): 59143392

約数和(自身を除く): 37432352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 130, 136, 160, 170, 208, 221, 260, 272, 307, 320, 340, 416, 442, 520, 544, 614, 680, 832, 884, 1040, 1088, 1105, 1228, 1360, 1535, 1768, 2080, 2210, 2456, 2720, 3070, 3536, 3991, 4160, 4420, 4912, 5219, 5440, 6140, 7072, 7982, 8840, 9824, 10438, 12280, 14144, 15964, 17680, 19648, 19955, 20876, 24560, 26095, 31928, 35360, 39910, 41752, 49120, 52190, 63856, 67847, 70720, 79820, 83504, 98240, 104380, 127712, 135694, 159640, 167008, 208760, 255424, 271388, 319280, 334016, 339235, 417520, 542776, 638560, 678470, 835040, 1085552, 1277120, 1356940, 1670080, 2171104, 2713880, 4342208, 5427760, 10855520, 21711040]

約数ペア:

[(1, 21711040), (2, 10855520), (4, 5427760), (5, 4342208), (8, 2713880), (10, 2171104), (13, 1670080), (16, 1356940), (17, 1277120), (20, 1085552), (26, 835040), (32, 678470), (34, 638560), (40, 542776), (52, 417520), (64, 339235), (65, 334016), (68, 319280), (80, 271388), (85, 255424), (104, 208760), (130, 167008), (136, 159640), (160, 135694), (170, 127712), (208, 104380), (221, 98240), (260, 83504), (272, 79820), (307, 70720), (320, 67847), (340, 63856), (416, 52190), (442, 49120), (520, 41752), (544, 39910), (614, 35360), (680, 31928), (832, 26095), (884, 24560), (1040, 20876), (1088, 19955), (1105, 19648), (1228, 17680), (1360, 15964), (1535, 14144), (1768, 12280), (2080, 10438), (2210, 9824), (2456, 8840), (2720, 7982), (3070, 7072), (3536, 6140), (3991, 5440), (4160, 5219), (4420, 4912)]