21395805

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2029}}^1$

素因数の和:2093

約数の個数: 32

約数和(自身を含む): 37027200

約数和(自身を除く): 15631395

約数列:

[1, 3, 5, 15, 19, 37, 57, 95, 111, 185, 285, 555, 703, 2029, 2109, 3515, 6087, 10145, 10545, 30435, 38551, 75073, 115653, 192755, 225219, 375365, 578265, 1126095, 1426387, 4279161, 7131935, 21395805]

約数ペア:

[(1, 21395805), (3, 7131935), (5, 4279161), (15, 1426387), (19, 1126095), (37, 578265), (57, 375365), (95, 225219), (111, 192755), (185, 115653), (285, 75073), (555, 38551), (703, 30435), (2029, 10545), (2109, 10145), (3515, 6087)]