21649312

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{569}}^1$

素因数の和:649

約数の個数: 48

約数和(自身を含む): 45246600

約数和(自身を除く): 23597288

約数列:

[1, 2, 4, 8, 16, 29, 32, 41, 58, 82, 116, 164, 232, 328, 464, 569, 656, 928, 1138, 1189, 1312, 2276, 2378, 4552, 4756, 9104, 9512, 16501, 18208, 19024, 23329, 33002, 38048, 46658, 66004, 93316, 132008, 186632, 264016, 373264, 528032, 676541, 746528, 1353082, 2706164, 5412328, 10824656, 21649312]

約数ペア:

[(1, 21649312), (2, 10824656), (4, 5412328), (8, 2706164), (16, 1353082), (29, 746528), (32, 676541), (41, 528032), (58, 373264), (82, 264016), (116, 186632), (164, 132008), (232, 93316), (328, 66004), (464, 46658), (569, 38048), (656, 33002), (928, 23329), (1138, 19024), (1189, 18208), (1312, 16501), (2276, 9512), (2378, 9104), (4552, 4756)]