21018228

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1$

素因数の和:114

約数の個数: 144

約数和(自身を含む): 65404416

約数和(自身を除く): 44386188

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 23, 28, 33, 42, 43, 44, 46, 66, 69, 77, 84, 86, 92, 129, 132, 138, 154, 161, 172, 231, 253, 258, 276, 301, 308, 322, 462, 473, 483, 506, 516, 529, 602, 644, 759, 903, 924, 946, 966, 989, 1012, 1058, 1204, 1419, 1518, 1587, 1771, 1806, 1892, 1932, 1978, 2116, 2838, 2967, 3036, 3174, 3311, 3542, 3612, 3703, 3956, 5313, 5676, 5819, 5934, 6348, 6622, 6923, 7084, 7406, 9933, 10626, 10879, 11109, 11638, 11868, 13244, 13846, 14812, 17457, 19866, 20769, 21252, 21758, 22218, 22747, 23276, 27692, 32637, 34914, 39732, 40733, 41538, 43516, 44436, 45494, 65274, 68241, 69828, 76153, 81466, 83076, 90988, 122199, 130548, 136482, 152306, 159229, 162932, 228459, 244398, 250217, 272964, 304612, 318458, 456918, 477687, 488796, 500434, 636916, 750651, 913836, 955374, 1000868, 1501302, 1751519, 1910748, 3002604, 3503038, 5254557, 7006076, 10509114, 21018228]

約数ペア:

[(1, 21018228), (2, 10509114), (3, 7006076), (4, 5254557), (6, 3503038), (7, 3002604), (11, 1910748), (12, 1751519), (14, 1501302), (21, 1000868), (22, 955374), (23, 913836), (28, 750651), (33, 636916), (42, 500434), (43, 488796), (44, 477687), (46, 456918), (66, 318458), (69, 304612), (77, 272964), (84, 250217), (86, 244398), (92, 228459), (129, 162932), (132, 159229), (138, 152306), (154, 136482), (161, 130548), (172, 122199), (231, 90988), (253, 83076), (258, 81466), (276, 76153), (301, 69828), (308, 68241), (322, 65274), (462, 45494), (473, 44436), (483, 43516), (506, 41538), (516, 40733), (529, 39732), (602, 34914), (644, 32637), (759, 27692), (903, 23276), (924, 22747), (946, 22218), (966, 21758), (989, 21252), (1012, 20769), (1058, 19866), (1204, 17457), (1419, 14812), (1518, 13846), (1587, 13244), (1771, 11868), (1806, 11638), (1892, 11109), (1932, 10879), (1978, 10626), (2116, 9933), (2838, 7406), (2967, 7084), (3036, 6923), (3174, 6622), (3311, 6348), (3542, 5934), (3612, 5819), (3703, 5676), (3956, 5313)]