20615085

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15797}}^1$

素因数の和:15837

約数の個数: 24

約数和(自身を含む): 36967320

約数和(自身を除く): 16352235

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 15797, 47391, 78985, 142173, 236955, 458113, 710865, 1374339, 2290565, 4123017, 6871695, 20615085]

約数ペア:

[(1, 20615085), (3, 6871695), (5, 4123017), (9, 2290565), (15, 1374339), (29, 710865), (45, 458113), (87, 236955), (145, 142173), (261, 78985), (435, 47391), (1305, 15797)]