28913193

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{18787}}^1$

素因数の和:18818

約数の個数: 20

約数和(自身を含む): 45466960

約数和(自身を除く): 16553767

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 18787, 56361, 169083, 356953, 507249, 1070859, 1521747, 3212577, 9637731, 28913193]

約数ペア:

[(1, 28913193), (3, 9637731), (9, 3212577), (19, 1521747), (27, 1070859), (57, 507249), (81, 356953), (171, 169083), (513, 56361), (1539, 18787)]