21240408

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{239}}^1$

素因数の和:301

約数の個数: 96

約数和(自身を含む): 63705600

約数和(自身を除く): 42465192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 23, 24, 28, 42, 46, 56, 69, 84, 92, 138, 161, 168, 184, 239, 276, 322, 478, 483, 529, 552, 644, 717, 956, 966, 1058, 1288, 1434, 1587, 1673, 1912, 1932, 2116, 2868, 3174, 3346, 3703, 3864, 4232, 5019, 5497, 5736, 6348, 6692, 7406, 10038, 10994, 11109, 12696, 13384, 14812, 16491, 20076, 21988, 22218, 29624, 32982, 38479, 40152, 43976, 44436, 65964, 76958, 88872, 115437, 126431, 131928, 153916, 230874, 252862, 307832, 379293, 461748, 505724, 758586, 885017, 923496, 1011448, 1517172, 1770034, 2655051, 3034344, 3540068, 5310102, 7080136, 10620204, 21240408]

約数ペア:

[(1, 21240408), (2, 10620204), (3, 7080136), (4, 5310102), (6, 3540068), (7, 3034344), (8, 2655051), (12, 1770034), (14, 1517172), (21, 1011448), (23, 923496), (24, 885017), (28, 758586), (42, 505724), (46, 461748), (56, 379293), (69, 307832), (84, 252862), (92, 230874), (138, 153916), (161, 131928), (168, 126431), (184, 115437), (239, 88872), (276, 76958), (322, 65964), (478, 44436), (483, 43976), (529, 40152), (552, 38479), (644, 32982), (717, 29624), (956, 22218), (966, 21988), (1058, 20076), (1288, 16491), (1434, 14812), (1587, 13384), (1673, 12696), (1912, 11109), (1932, 10994), (2116, 10038), (2868, 7406), (3174, 6692), (3346, 6348), (3703, 5736), (3864, 5497), (4232, 5019)]