221771891

素因数分解:

${\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1\times {\mathrm{631}}^1$

素因数の和:1090

約数の個数: 16

約数和(自身を含む): 245721600

約数和(自身を除く): 23949709

約数列:

[1, 11, 89, 359, 631, 979, 3949, 6941, 31951, 56159, 226529, 351461, 617749, 2491819, 20161081, 221771891]

約数ペア:

[(1, 221771891), (11, 20161081), (89, 2491819), (359, 617749), (631, 351461), (979, 226529), (3949, 56159), (6941, 31951)]