21227954

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{8539}}^1$

素因数の和:8665

約数の個数: 16

約数和(自身を含む): 35048160

約数和(自身を除く): 13820206

約数列:

[1, 2, 11, 22, 113, 226, 1243, 2486, 8539, 17078, 93929, 187858, 964907, 1929814, 10613977, 21227954]

約数ペア:

[(1, 21227954), (2, 10613977), (11, 1929814), (22, 964907), (113, 187858), (226, 93929), (1243, 17078), (2486, 8539)]