18220876

素因数分解:

$2^2\times {\mathrm{23}}^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:238

約数の個数: 36

約数和(自身を含む): 34064800

約数和(自身を除く): 15843924

約数列:

[1, 2, 4, 23, 46, 79, 92, 109, 158, 218, 316, 436, 529, 1058, 1817, 2116, 2507, 3634, 5014, 7268, 8611, 10028, 17222, 34444, 41791, 57661, 83582, 115322, 167164, 198053, 230644, 396106, 792212, 4555219, 9110438, 18220876]

約数ペア:

[(1, 18220876), (2, 9110438), (4, 4555219), (23, 792212), (46, 396106), (79, 230644), (92, 198053), (109, 167164), (158, 115322), (218, 83582), (316, 57661), (436, 41791), (529, 34444), (1058, 17222), (1817, 10028), (2116, 8611), (2507, 7268), (3634, 5014)]