18789464

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:483

約数の個数: 32

約数和(自身を含む): 36195600

約数和(自身を除く): 17406136

約数列:

[1, 2, 4, 8, 61, 122, 139, 244, 277, 278, 488, 554, 556, 1108, 1112, 2216, 8479, 16897, 16958, 33794, 33916, 38503, 67588, 67832, 77006, 135176, 154012, 308024, 2348683, 4697366, 9394732, 18789464]

約数ペア:

[(1, 18789464), (2, 9394732), (4, 4697366), (8, 2348683), (61, 308024), (122, 154012), (139, 135176), (244, 77006), (277, 67832), (278, 67588), (488, 38503), (554, 33916), (556, 33794), (1108, 16958), (1112, 16897), (2216, 8479)]