16911140

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{233}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 20828380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 191, 233, 380, 382, 466, 764, 932, 955, 1165, 1910, 2330, 3629, 3820, 4427, 4660, 7258, 8854, 14516, 17708, 18145, 22135, 36290, 44270, 44503, 72580, 88540, 89006, 178012, 222515, 445030, 845557, 890060, 1691114, 3382228, 4227785, 8455570, 16911140]

約数ペア:

[(1, 16911140), (2, 8455570), (4, 4227785), (5, 3382228), (10, 1691114), (19, 890060), (20, 845557), (38, 445030), (76, 222515), (95, 178012), (190, 89006), (191, 88540), (233, 72580), (380, 44503), (382, 44270), (466, 36290), (764, 22135), (932, 18145), (955, 17708), (1165, 14516), (1910, 8854), (2330, 7258), (3629, 4660), (3820, 4427)]