28748013

素因数分解:

$3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{6949}}^1$

素因数の和:7156

約数の個数: 16

約数和(自身を含む): 44035200

約数和(自身を除く): 15287187

約数列:

[1, 3, 7, 21, 197, 591, 1379, 4137, 6949, 20847, 48643, 145929, 1368953, 4106859, 9582671, 28748013]

約数ペア:

[(1, 28748013), (3, 9582671), (7, 4106859), (21, 1368953), (197, 145929), (591, 48643), (1379, 20847), (4137, 6949)]