19366985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 8004535

約数列:

[1, 5, 11, 19, 43, 55, 95, 209, 215, 431, 473, 817, 1045, 2155, 2365, 4085, 4741, 8189, 8987, 18533, 23705, 40945, 44935, 90079, 92665, 203863, 352127, 450395, 1019315, 1760635, 3873397, 19366985]

約数ペア:

[(1, 19366985), (5, 3873397), (11, 1760635), (19, 1019315), (43, 450395), (55, 352127), (95, 203863), (209, 92665), (215, 90079), (431, 44935), (473, 40945), (817, 23705), (1045, 18533), (2155, 8987), (2365, 8189), (4085, 4741)]