21738906

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{4663}}^1$

素因数の和:4715

約数の個数: 48

約数和(自身を含む): 55296384

約数和(自身を除く): 33557478

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 63, 74, 111, 126, 222, 259, 333, 518, 666, 777, 1554, 2331, 4662, 4663, 9326, 13989, 27978, 32641, 41967, 65282, 83934, 97923, 172531, 195846, 293769, 345062, 517593, 587538, 1035186, 1207717, 1552779, 2415434, 3105558, 3623151, 7246302, 10869453, 21738906]

約数ペア:

[(1, 21738906), (2, 10869453), (3, 7246302), (6, 3623151), (7, 3105558), (9, 2415434), (14, 1552779), (18, 1207717), (21, 1035186), (37, 587538), (42, 517593), (63, 345062), (74, 293769), (111, 195846), (126, 172531), (222, 97923), (259, 83934), (333, 65282), (518, 41967), (666, 32641), (777, 27978), (1554, 13989), (2331, 9326), (4662, 4663)]