21487312

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 52710912

約数和(自身を除く): 31223600

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 107, 112, 154, 163, 176, 214, 308, 326, 428, 616, 652, 749, 856, 1141, 1177, 1232, 1304, 1498, 1712, 1793, 2282, 2354, 2608, 2996, 3586, 4564, 4708, 5992, 7172, 8239, 9128, 9416, 11984, 12551, 14344, 16478, 17441, 18256, 18832, 25102, 28688, 32956, 34882, 50204, 65912, 69764, 100408, 122087, 131824, 139528, 191851, 200816, 244174, 279056, 383702, 488348, 767404, 976696, 1342957, 1534808, 1953392, 2685914, 3069616, 5371828, 10743656, 21487312]

約数ペア:

[(1, 21487312), (2, 10743656), (4, 5371828), (7, 3069616), (8, 2685914), (11, 1953392), (14, 1534808), (16, 1342957), (22, 976696), (28, 767404), (44, 488348), (56, 383702), (77, 279056), (88, 244174), (107, 200816), (112, 191851), (154, 139528), (163, 131824), (176, 122087), (214, 100408), (308, 69764), (326, 65912), (428, 50204), (616, 34882), (652, 32956), (749, 28688), (856, 25102), (1141, 18832), (1177, 18256), (1232, 17441), (1304, 16478), (1498, 14344), (1712, 12551), (1793, 11984), (2282, 9416), (2354, 9128), (2608, 8239), (2996, 7172), (3586, 5992), (4564, 4708)]