21834995

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1297}}^1$

素因数の和:1359

約数の個数: 32

約数和(自身を含む): 33145728

約数和(自身を除く): 11310733

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 455, 481, 1295, 1297, 2405, 3367, 6485, 9079, 16835, 16861, 45395, 47989, 84305, 118027, 239945, 335923, 590135, 623857, 1679615, 3119285, 4366999, 21834995]

約数ペア:

[(1, 21834995), (5, 4366999), (7, 3119285), (13, 1679615), (35, 623857), (37, 590135), (65, 335923), (91, 239945), (185, 118027), (259, 84305), (455, 47989), (481, 45395), (1295, 16861), (1297, 16835), (2405, 9079), (3367, 6485)]