78618561

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1913}}^1$

素因数の和:2045

約数の個数: 32

約数和(自身を含む): 127395840

約数和(自身を除く): 48777279

約数列:

[1, 3, 7, 19, 21, 57, 103, 133, 309, 399, 721, 1913, 1957, 2163, 5739, 5871, 13391, 13699, 36347, 40173, 41097, 109041, 197039, 254429, 591117, 763287, 1379273, 3743741, 4137819, 11231223, 26206187, 78618561]

約数ペア:

[(1, 78618561), (3, 26206187), (7, 11231223), (19, 4137819), (21, 3743741), (57, 1379273), (103, 763287), (133, 591117), (309, 254429), (399, 197039), (721, 109041), (1913, 41097), (1957, 40173), (2163, 36347), (5739, 13699), (5871, 13391)]