20717488

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{2221}}^1$

素因数の和:2293

約数の個数: 40

約数和(自身を含む): 44635536

約数和(自身を除く): 23918048

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 53, 88, 106, 176, 212, 424, 583, 848, 1166, 2221, 2332, 4442, 4664, 8884, 9328, 17768, 24431, 35536, 48862, 97724, 117713, 195448, 235426, 390896, 470852, 941704, 1294843, 1883408, 2589686, 5179372, 10358744, 20717488]

約数ペア:

[(1, 20717488), (2, 10358744), (4, 5179372), (8, 2589686), (11, 1883408), (16, 1294843), (22, 941704), (44, 470852), (53, 390896), (88, 235426), (106, 195448), (176, 117713), (212, 97724), (424, 48862), (583, 35536), (848, 24431), (1166, 17768), (2221, 9328), (2332, 8884), (4442, 4664)]