21158183

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1021}}^1$

素因数の和:1114

約数の個数: 16

約数和(自身を含む): 23841216

約数和(自身を除く): 2683033

約数列:

[1, 17, 23, 53, 391, 901, 1021, 1219, 17357, 20723, 23483, 54113, 399211, 919921, 1244599, 21158183]

約数ペア:

[(1, 21158183), (17, 1244599), (23, 919921), (53, 399211), (391, 54113), (901, 23483), (1021, 20723), (1219, 17357)]