28704015

素因数分解:

$3^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1453}}^1$

素因数の和:1903

約数の個数: 24

約数和(自身を含む): 49901280

約数和(自身を除く): 21197265

約数列:

[1, 3, 5, 9, 15, 45, 439, 1317, 1453, 2195, 3951, 4359, 6585, 7265, 13077, 19755, 21795, 65385, 637867, 1913601, 3189335, 5740803, 9568005, 28704015]

約数ペア:

[(1, 28704015), (3, 9568005), (5, 5740803), (9, 3189335), (15, 1913601), (45, 637867), (439, 65385), (1317, 21795), (1453, 19755), (2195, 13077), (3951, 7265), (4359, 6585)]