18591465

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 31219200

約数和(自身を除く): 12627735

約数列:

[1, 3, 5, 15, 29, 79, 87, 145, 237, 395, 435, 541, 1185, 1623, 2291, 2705, 6873, 8115, 11455, 15689, 34365, 42739, 47067, 78445, 128217, 213695, 235335, 641085, 1239431, 3718293, 6197155, 18591465]

約数ペア:

[(1, 18591465), (3, 6197155), (5, 3718293), (15, 1239431), (29, 641085), (79, 235335), (87, 213695), (145, 128217), (237, 78445), (395, 47067), (435, 42739), (541, 34365), (1185, 15689), (1623, 11455), (2291, 8115), (2705, 6873)]