21713624

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 45619200

約数和(自身を除く): 23905576

約数列:

[1, 2, 4, 8, 17, 34, 43, 47, 68, 79, 86, 94, 136, 158, 172, 188, 316, 344, 376, 632, 731, 799, 1343, 1462, 1598, 2021, 2686, 2924, 3196, 3397, 3713, 4042, 5372, 5848, 6392, 6794, 7426, 8084, 10744, 13588, 14852, 16168, 27176, 29704, 34357, 57749, 63121, 68714, 115498, 126242, 137428, 159659, 230996, 252484, 274856, 319318, 461992, 504968, 638636, 1277272, 2714203, 5428406, 10856812, 21713624]

約数ペア:

[(1, 21713624), (2, 10856812), (4, 5428406), (8, 2714203), (17, 1277272), (34, 638636), (43, 504968), (47, 461992), (68, 319318), (79, 274856), (86, 252484), (94, 230996), (136, 159659), (158, 137428), (172, 126242), (188, 115498), (316, 68714), (344, 63121), (376, 57749), (632, 34357), (731, 29704), (799, 27176), (1343, 16168), (1462, 14852), (1598, 13588), (2021, 10744), (2686, 8084), (2924, 7426), (3196, 6794), (3397, 6392), (3713, 5848), (4042, 5372)]