821867145

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{809}}^1$

素因数の和:1006

約数の個数: 64

約数和(自身を含む): 1478062080

約数和(自身を除く): 656194935

約数列:

[1, 3, 5, 11, 15, 33, 47, 55, 131, 141, 165, 235, 393, 517, 655, 705, 809, 1441, 1551, 1965, 2427, 2585, 4045, 4323, 6157, 7205, 7755, 8899, 12135, 18471, 21615, 26697, 30785, 38023, 44495, 67727, 92355, 105979, 114069, 133485, 190115, 203181, 317937, 338635, 418253, 529895, 570345, 1015905, 1165769, 1254759, 1589685, 2091265, 3497307, 4981013, 5828845, 6273795, 14943039, 17486535, 24905065, 54791143, 74715195, 164373429, 273955715, 821867145]

約数ペア:

[(1, 821867145), (3, 273955715), (5, 164373429), (11, 74715195), (15, 54791143), (33, 24905065), (47, 17486535), (55, 14943039), (131, 6273795), (141, 5828845), (165, 4981013), (235, 3497307), (393, 2091265), (517, 1589685), (655, 1254759), (705, 1165769), (809, 1015905), (1441, 570345), (1551, 529895), (1965, 418253), (2427, 338635), (2585, 317937), (4045, 203181), (4323, 190115), (6157, 133485), (7205, 114069), (7755, 105979), (8899, 92355), (12135, 67727), (18471, 44495), (21615, 38023), (26697, 30785)]