21305647

素因数分解:

${\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 23814144

約数和(自身を除く): 2508497

約数列:

[1, 11, 101, 127, 151, 1111, 1397, 1661, 12827, 15251, 19177, 141097, 167761, 210947, 1936877, 21305647]

約数ペア:

[(1, 21305647), (11, 1936877), (101, 210947), (127, 167761), (151, 141097), (1111, 19177), (1397, 15251), (1661, 12827)]