18766904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5821}}^1$

素因数の和:5871

約数の個数: 32

約数和(自身を含む): 39123840

約数和(自身を除く): 20356936

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 124, 248, 403, 806, 1612, 3224, 5821, 11642, 23284, 46568, 75673, 151346, 180451, 302692, 360902, 605384, 721804, 1443608, 2345863, 4691726, 9383452, 18766904]

約数ペア:

[(1, 18766904), (2, 9383452), (4, 4691726), (8, 2345863), (13, 1443608), (26, 721804), (31, 605384), (52, 360902), (62, 302692), (104, 180451), (124, 151346), (248, 75673), (403, 46568), (806, 23284), (1612, 11642), (3224, 5821)]