2742831

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 5189184

約数和(自身を除く): 2446353

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 197, 221, 273, 357, 591, 663, 819, 1071, 1379, 1547, 1773, 1989, 2561, 3349, 4137, 4641, 7683, 10047, 12411, 13923, 17927, 23049, 23443, 30141, 43537, 53781, 70329, 130611, 161343, 210987, 304759, 391833, 914277, 2742831]

約数ペア:

[(1, 2742831), (3, 914277), (7, 391833), (9, 304759), (13, 210987), (17, 161343), (21, 130611), (39, 70329), (51, 53781), (63, 43537), (91, 30141), (117, 23443), (119, 23049), (153, 17927), (197, 13923), (221, 12411), (273, 10047), (357, 7683), (591, 4641), (663, 4137), (819, 3349), (1071, 2561), (1379, 1989), (1547, 1773)]