21327656

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:594

約数の個数: 64

約数和(自身を含む): 49610880

約数和(自身を除く): 28283224

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 43, 56, 68, 86, 119, 136, 172, 238, 301, 344, 476, 521, 602, 731, 952, 1042, 1204, 1462, 2084, 2408, 2924, 3647, 4168, 5117, 5848, 7294, 8857, 10234, 14588, 17714, 20468, 22403, 29176, 35428, 40936, 44806, 61999, 70856, 89612, 123998, 156821, 179224, 247996, 313642, 380851, 495992, 627284, 761702, 1254568, 1523404, 2665957, 3046808, 5331914, 10663828, 21327656]

約数ペア:

[(1, 21327656), (2, 10663828), (4, 5331914), (7, 3046808), (8, 2665957), (14, 1523404), (17, 1254568), (28, 761702), (34, 627284), (43, 495992), (56, 380851), (68, 313642), (86, 247996), (119, 179224), (136, 156821), (172, 123998), (238, 89612), (301, 70856), (344, 61999), (476, 44806), (521, 40936), (602, 35428), (731, 29176), (952, 22403), (1042, 20468), (1204, 17714), (1462, 14588), (2084, 10234), (2408, 8857), (2924, 7294), (3647, 5848), (4168, 5117)]