18902435

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 25643520

約数和(自身を除く): 6741085

約数列:

[1, 5, 19, 23, 41, 95, 115, 205, 211, 437, 779, 943, 1055, 2185, 3895, 4009, 4715, 4853, 8651, 17917, 20045, 24265, 43255, 89585, 92207, 164369, 198973, 461035, 821845, 994865, 3780487, 18902435]

約数ペア:

[(1, 18902435), (5, 3780487), (19, 994865), (23, 821845), (41, 461035), (95, 198973), (115, 164369), (205, 92207), (211, 89585), (437, 43255), (779, 24265), (943, 20045), (1055, 17917), (2185, 8651), (3895, 4853), (4009, 4715)]