21177590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{15923}}^1$

素因数の和:15956

約数の個数: 32

約数和(自身を含む): 45861120

約数和(自身を除く): 24683530

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 70, 95, 133, 190, 266, 665, 1330, 15923, 31846, 79615, 111461, 159230, 222922, 302537, 557305, 605074, 1114610, 1512685, 2117759, 3025370, 4235518, 10588795, 21177590]

約数ペア:

[(1, 21177590), (2, 10588795), (5, 4235518), (7, 3025370), (10, 2117759), (14, 1512685), (19, 1114610), (35, 605074), (38, 557305), (70, 302537), (95, 222922), (133, 159230), (190, 111461), (266, 79615), (665, 31846), (1330, 15923)]