21670508

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{2161}}^1$

素因数の和:2297

約数の個数: 24

約数和(自身を含む): 39953760

約数和(自身を除く): 18283252

約数列:

[1, 2, 4, 23, 46, 92, 109, 218, 436, 2161, 2507, 4322, 5014, 8644, 10028, 49703, 99406, 198812, 235549, 471098, 942196, 5417627, 10835254, 21670508]

約数ペア:

[(1, 21670508), (2, 10835254), (4, 5417627), (23, 942196), (46, 471098), (92, 235549), (109, 198812), (218, 99406), (436, 49703), (2161, 10028), (2507, 8644), (4322, 5014)]