28706085

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{21997}}^1$

素因数の和:22037

約数の個数: 24

約数和(自身を含む): 51475320

約数和(自身を除く): 22769235

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 21997, 65991, 109985, 197973, 329955, 637913, 989865, 1913739, 3189565, 5741217, 9568695, 28706085]

約数ペア:

[(1, 28706085), (3, 9568695), (5, 5741217), (9, 3189565), (15, 1913739), (29, 989865), (45, 637913), (87, 329955), (145, 197973), (261, 109985), (435, 65991), (1305, 21997)]