18647420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{84761}}^1$

素因数の和:84781

約数の個数: 24

約数和(自身を含む): 42720048

約数和(自身を除く): 24072628

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 84761, 169522, 339044, 423805, 847610, 932371, 1695220, 1864742, 3729484, 4661855, 9323710, 18647420]

約数ペア:

[(1, 18647420), (2, 9323710), (4, 4661855), (5, 3729484), (10, 1864742), (11, 1695220), (20, 932371), (22, 847610), (44, 423805), (55, 339044), (110, 169522), (220, 84761)]