21553281064

素因数分解:

$2^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{613}}^1\times {\mathrm{4517}}^1$

素因数の和:5282

約数の個数: 64

約数和(自身を含む): 46604073600

約数和(自身を除く): 25050792536

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 139, 278, 556, 613, 973, 1112, 1226, 1946, 2452, 3892, 4291, 4517, 4904, 7784, 8582, 9034, 17164, 18068, 31619, 34328, 36136, 63238, 85207, 126476, 170414, 252952, 340828, 596449, 627863, 681656, 1192898, 1255726, 2385796, 2511452, 2768921, 4395041, 4771592, 5022904, 5537842, 8790082, 11075684, 17580164, 19382447, 22151368, 35160328, 38764894, 77529788, 155059576, 384880019, 769760038, 1539520076, 2694160133, 3079040152, 5388320266, 10776640532, 21553281064]

約数ペア:

[(1, 21553281064), (2, 10776640532), (4, 5388320266), (7, 3079040152), (8, 2694160133), (14, 1539520076), (28, 769760038), (56, 384880019), (139, 155059576), (278, 77529788), (556, 38764894), (613, 35160328), (973, 22151368), (1112, 19382447), (1226, 17580164), (1946, 11075684), (2452, 8790082), (3892, 5537842), (4291, 5022904), (4517, 4771592), (4904, 4395041), (7784, 2768921), (8582, 2511452), (9034, 2385796), (17164, 1255726), (18068, 1192898), (31619, 681656), (34328, 627863), (36136, 596449), (63238, 340828), (85207, 252952), (126476, 170414)]