16667945

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 23974656

約数和(自身を除く): 7306711

約数列:

[1, 5, 7, 35, 37, 61, 185, 211, 259, 305, 427, 1055, 1295, 1477, 2135, 2257, 7385, 7807, 11285, 12871, 15799, 39035, 54649, 64355, 78995, 90097, 273245, 450485, 476227, 2381135, 3333589, 16667945]

約数ペア:

[(1, 16667945), (5, 3333589), (7, 2381135), (35, 476227), (37, 450485), (61, 273245), (185, 90097), (211, 78995), (259, 64355), (305, 54649), (427, 39035), (1055, 15799), (1295, 12871), (1477, 11285), (2135, 7807), (2257, 7385)]