18457816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9341}}^1$

素因数の和:9379

約数の個数: 32

約数和(自身を含む): 39236400

約数和(自身を除く): 20778584

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 9341, 18682, 37364, 74728, 121433, 177479, 242866, 354958, 485732, 709916, 971464, 1419832, 2307227, 4614454, 9228908, 18457816]

約数ペア:

[(1, 18457816), (2, 9228908), (4, 4614454), (8, 2307227), (13, 1419832), (19, 971464), (26, 709916), (38, 485732), (52, 354958), (76, 242866), (104, 177479), (152, 121433), (247, 74728), (494, 37364), (988, 18682), (1976, 9341)]