20659485

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:634

約数の個数: 64

約数和(自身を含む): 42614784

約数和(自身を除く): 21955299

約数列:

[1, 3, 5, 7, 11, 15, 21, 31, 33, 35, 55, 77, 93, 105, 155, 165, 217, 231, 341, 385, 465, 577, 651, 1023, 1085, 1155, 1705, 1731, 2387, 2885, 3255, 4039, 5115, 6347, 7161, 8655, 11935, 12117, 17887, 19041, 20195, 31735, 35805, 44429, 53661, 60585, 89435, 95205, 125209, 133287, 196757, 222145, 268305, 375627, 590271, 626045, 666435, 983785, 1377299, 1878135, 2951355, 4131897, 6886495, 20659485]

約数ペア:

[(1, 20659485), (3, 6886495), (5, 4131897), (7, 2951355), (11, 1878135), (15, 1377299), (21, 983785), (31, 666435), (33, 626045), (35, 590271), (55, 375627), (77, 268305), (93, 222145), (105, 196757), (155, 133287), (165, 125209), (217, 95205), (231, 89435), (341, 60585), (385, 53661), (465, 44429), (577, 35805), (651, 31735), (1023, 20195), (1085, 19041), (1155, 17887), (1705, 12117), (1731, 11935), (2387, 8655), (2885, 7161), (3255, 6347), (4039, 5115)]