21419312

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{127}}^2$

素因数の和:345

約数の個数: 30

約数和(自身を含む): 42333228

約数和(自身を除く): 20913916

約数列:

[1, 2, 4, 8, 16, 83, 127, 166, 254, 332, 508, 664, 1016, 1328, 2032, 10541, 16129, 21082, 32258, 42164, 64516, 84328, 129032, 168656, 258064, 1338707, 2677414, 5354828, 10709656, 21419312]

約数ペア:

[(1, 21419312), (2, 10709656), (4, 5354828), (8, 2677414), (16, 1338707), (83, 258064), (127, 168656), (166, 129032), (254, 84328), (332, 64516), (508, 42164), (664, 32258), (1016, 21082), (1328, 16129), (2032, 10541)]