21913328

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{569}}^1$

素因数の和:689

約数の個数: 40

約数和(自身を含む): 44528400

約数和(自身を除く): 22615072

約数列:

[1, 2, 4, 8, 16, 29, 58, 83, 116, 166, 232, 332, 464, 569, 664, 1138, 1328, 2276, 2407, 4552, 4814, 9104, 9628, 16501, 19256, 33002, 38512, 47227, 66004, 94454, 132008, 188908, 264016, 377816, 755632, 1369583, 2739166, 5478332, 10956664, 21913328]

約数ペア:

[(1, 21913328), (2, 10956664), (4, 5478332), (8, 2739166), (16, 1369583), (29, 755632), (58, 377816), (83, 264016), (116, 188908), (166, 132008), (232, 94454), (332, 66004), (464, 47227), (569, 38512), (664, 33002), (1138, 19256), (1328, 16501), (2276, 9628), (2407, 9104), (4552, 4814)]