21551256

素因数分解:

$2^3\times 3^2\times {\mathrm{43}}^1\times {\mathrm{6961}}^1$

素因数の和:7016

約数の個数: 48

約数和(自身を含む): 59733960

約数和(自身を除く): 38182704

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 43, 72, 86, 129, 172, 258, 344, 387, 516, 774, 1032, 1548, 3096, 6961, 13922, 20883, 27844, 41766, 55688, 62649, 83532, 125298, 167064, 250596, 299323, 501192, 598646, 897969, 1197292, 1795938, 2394584, 2693907, 3591876, 5387814, 7183752, 10775628, 21551256]

約数ペア:

[(1, 21551256), (2, 10775628), (3, 7183752), (4, 5387814), (6, 3591876), (8, 2693907), (9, 2394584), (12, 1795938), (18, 1197292), (24, 897969), (36, 598646), (43, 501192), (72, 299323), (86, 250596), (129, 167064), (172, 125298), (258, 83532), (344, 62649), (387, 55688), (516, 41766), (774, 27844), (1032, 20883), (1548, 13922), (3096, 6961)]