21071952

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1$

素因数の和:329

約数の個数: 120

約数和(自身を含む): 65808288

約数和(自身を除く): 44736336

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 53, 66, 72, 88, 99, 106, 132, 144, 159, 176, 198, 212, 251, 264, 318, 396, 424, 477, 502, 528, 583, 636, 753, 792, 848, 954, 1004, 1166, 1272, 1506, 1584, 1749, 1908, 2008, 2259, 2332, 2544, 2761, 3012, 3498, 3816, 4016, 4518, 4664, 5247, 5522, 6024, 6996, 7632, 8283, 9036, 9328, 10494, 11044, 12048, 13303, 13992, 16566, 18072, 20988, 22088, 24849, 26606, 27984, 33132, 36144, 39909, 41976, 44176, 49698, 53212, 66264, 79818, 83952, 99396, 106424, 119727, 132528, 146333, 159636, 198792, 212848, 239454, 292666, 319272, 397584, 438999, 478908, 585332, 638544, 877998, 957816, 1170664, 1316997, 1755996, 1915632, 2341328, 2633994, 3511992, 5267988, 7023984, 10535976, 21071952]

約数ペア:

[(1, 21071952), (2, 10535976), (3, 7023984), (4, 5267988), (6, 3511992), (8, 2633994), (9, 2341328), (11, 1915632), (12, 1755996), (16, 1316997), (18, 1170664), (22, 957816), (24, 877998), (33, 638544), (36, 585332), (44, 478908), (48, 438999), (53, 397584), (66, 319272), (72, 292666), (88, 239454), (99, 212848), (106, 198792), (132, 159636), (144, 146333), (159, 132528), (176, 119727), (198, 106424), (212, 99396), (251, 83952), (264, 79818), (318, 66264), (396, 53212), (424, 49698), (477, 44176), (502, 41976), (528, 39909), (583, 36144), (636, 33132), (753, 27984), (792, 26606), (848, 24849), (954, 22088), (1004, 20988), (1166, 18072), (1272, 16566), (1506, 13992), (1584, 13303), (1749, 12048), (1908, 11044), (2008, 10494), (2259, 9328), (2332, 9036), (2544, 8283), (2761, 7632), (3012, 6996), (3498, 6024), (3816, 5522), (4016, 5247), (4518, 4664)]