20210571381

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{613}}^1\times {\mathrm{10979}}^1$

素因数の和:11626

約数の個数: 64

約数和(自身を含む): 36243486720

約数和(自身を除く): 16032915339

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 613, 1001, 1839, 3003, 4291, 6743, 7969, 10979, 12873, 20229, 23907, 32937, 47201, 55783, 76853, 87659, 120769, 141603, 142727, 167349, 230559, 262977, 362307, 428181, 613613, 845383, 999089, 1569997, 1840839, 2536149, 2997267, 4709991, 6730127, 10989979, 20190381, 32969937, 47110889, 74031397, 87491651, 141332667, 222094191, 262474953, 518219779, 612441557, 962408161, 1554659337, 1837324671, 2887224483, 6736857127, 20210571381]

約数ペア:

[(1, 20210571381), (3, 6736857127), (7, 2887224483), (11, 1837324671), (13, 1554659337), (21, 962408161), (33, 612441557), (39, 518219779), (77, 262474953), (91, 222094191), (143, 141332667), (231, 87491651), (273, 74031397), (429, 47110889), (613, 32969937), (1001, 20190381), (1839, 10989979), (3003, 6730127), (4291, 4709991), (6743, 2997267), (7969, 2536149), (10979, 1840839), (12873, 1569997), (20229, 999089), (23907, 845383), (32937, 613613), (47201, 428181), (55783, 362307), (76853, 262977), (87659, 230559), (120769, 167349), (141603, 142727)]