21447753

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 31752192

約数和(自身を除く): 10304439

約数列:

[1, 3, 23, 31, 37, 69, 93, 111, 271, 713, 813, 851, 1147, 2139, 2553, 3441, 6233, 8401, 10027, 18699, 25203, 26381, 30081, 79143, 193223, 230621, 310837, 579669, 691863, 932511, 7149251, 21447753]

約数ペア:

[(1, 21447753), (3, 7149251), (23, 932511), (31, 691863), (37, 579669), (69, 310837), (93, 230621), (111, 193223), (271, 79143), (713, 30081), (813, 26381), (851, 25203), (1147, 18699), (2139, 10027), (2553, 8401), (3441, 6233)]