21766256

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1861}}^1$

素因数の和:1929

約数の個数: 40

約数和(自身を含む): 45715824

約数和(自身を除く): 23949568

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 68, 86, 136, 172, 272, 344, 688, 731, 1462, 1861, 2924, 3722, 5848, 7444, 11696, 14888, 29776, 31637, 63274, 80023, 126548, 160046, 253096, 320092, 506192, 640184, 1280368, 1360391, 2720782, 5441564, 10883128, 21766256]

約数ペア:

[(1, 21766256), (2, 10883128), (4, 5441564), (8, 2720782), (16, 1360391), (17, 1280368), (34, 640184), (43, 506192), (68, 320092), (86, 253096), (136, 160046), (172, 126548), (272, 80023), (344, 63274), (688, 31637), (731, 29776), (1462, 14888), (1861, 11696), (2924, 7444), (3722, 5848)]