21787273712

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1862797}}^1$

素因数の和:1862865

約数の個数: 40

約数和(自身を含む): 45735416496

約数和(自身を除く): 23948142784

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 68, 86, 136, 172, 272, 344, 688, 731, 1462, 2924, 5848, 11696, 1862797, 3725594, 7451188, 14902376, 29804752, 31667549, 63335098, 80100271, 126670196, 160200542, 253340392, 320401084, 506680784, 640802168, 1281604336, 1361704607, 2723409214, 5446818428, 10893636856, 21787273712]

約数ペア:

[(1, 21787273712), (2, 10893636856), (4, 5446818428), (8, 2723409214), (16, 1361704607), (17, 1281604336), (34, 640802168), (43, 506680784), (68, 320401084), (86, 253340392), (136, 160200542), (172, 126670196), (272, 80100271), (344, 63335098), (688, 31667549), (731, 29804752), (1462, 14902376), (2924, 7451188), (5848, 3725594), (11696, 1862797)]