21151695

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 35046144

約数和(自身を除く): 13894449

約数列:

[1, 3, 5, 15, 41, 123, 163, 205, 211, 489, 615, 633, 815, 1055, 2445, 3165, 6683, 8651, 20049, 25953, 33415, 34393, 43255, 100245, 103179, 129765, 171965, 515895, 1410113, 4230339, 7050565, 21151695]

約数ペア:

[(1, 21151695), (3, 7050565), (5, 4230339), (15, 1410113), (41, 515895), (123, 171965), (163, 129765), (205, 103179), (211, 100245), (489, 43255), (615, 34393), (633, 33415), (815, 25953), (1055, 20049), (2445, 8651), (3165, 6683)]