21180516

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{577}}^1$

素因数の和:633

約数の個数: 96

約数和(自身を含む): 62146560

約数和(自身を除く): 40966044

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 23, 28, 38, 42, 46, 57, 69, 76, 84, 92, 114, 133, 138, 161, 228, 266, 276, 322, 399, 437, 483, 532, 577, 644, 798, 874, 966, 1154, 1311, 1596, 1731, 1748, 1932, 2308, 2622, 3059, 3462, 4039, 5244, 6118, 6924, 8078, 9177, 10963, 12117, 12236, 13271, 16156, 18354, 21926, 24234, 26542, 32889, 36708, 39813, 43852, 48468, 53084, 65778, 76741, 79626, 92897, 131556, 153482, 159252, 185794, 230223, 252149, 278691, 306964, 371588, 460446, 504298, 557382, 756447, 920892, 1008596, 1114764, 1512894, 1765043, 3025788, 3530086, 5295129, 7060172, 10590258, 21180516]

約数ペア:

[(1, 21180516), (2, 10590258), (3, 7060172), (4, 5295129), (6, 3530086), (7, 3025788), (12, 1765043), (14, 1512894), (19, 1114764), (21, 1008596), (23, 920892), (28, 756447), (38, 557382), (42, 504298), (46, 460446), (57, 371588), (69, 306964), (76, 278691), (84, 252149), (92, 230223), (114, 185794), (133, 159252), (138, 153482), (161, 131556), (228, 92897), (266, 79626), (276, 76741), (322, 65778), (399, 53084), (437, 48468), (483, 43852), (532, 39813), (577, 36708), (644, 32889), (798, 26542), (874, 24234), (966, 21926), (1154, 18354), (1311, 16156), (1596, 13271), (1731, 12236), (1748, 12117), (1932, 10963), (2308, 9177), (2622, 8078), (3059, 6924), (3462, 6118), (4039, 5244)]