21275704

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{2143}}^1$

素因数の和:2239

約数の個数: 32

約数和(自身を含む): 42837120

約数和(自身を除く): 21561416

約数列:

[1, 2, 4, 8, 17, 34, 68, 73, 136, 146, 292, 584, 1241, 2143, 2482, 4286, 4964, 8572, 9928, 17144, 36431, 72862, 145724, 156439, 291448, 312878, 625756, 1251512, 2659463, 5318926, 10637852, 21275704]

約数ペア:

[(1, 21275704), (2, 10637852), (4, 5318926), (8, 2659463), (17, 1251512), (34, 625756), (68, 312878), (73, 291448), (136, 156439), (146, 145724), (292, 72862), (584, 36431), (1241, 17144), (2143, 9928), (2482, 8572), (4286, 4964)]