19855164

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:319

約数の個数: 96

約数和(自身を含む): 56770560

約数和(自身を除く): 36915396

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 43, 46, 69, 84, 86, 92, 129, 138, 161, 172, 239, 258, 276, 301, 322, 478, 483, 516, 602, 644, 717, 903, 956, 966, 989, 1204, 1434, 1673, 1806, 1932, 1978, 2868, 2967, 3346, 3612, 3956, 5019, 5497, 5934, 6692, 6923, 10038, 10277, 10994, 11868, 13846, 16491, 20076, 20554, 20769, 21988, 27692, 30831, 32982, 38479, 41108, 41538, 61662, 65964, 71939, 76958, 83076, 115437, 123324, 143878, 153916, 215817, 230874, 236371, 287756, 431634, 461748, 472742, 709113, 863268, 945484, 1418226, 1654597, 2836452, 3309194, 4963791, 6618388, 9927582, 19855164]

約数ペア:

[(1, 19855164), (2, 9927582), (3, 6618388), (4, 4963791), (6, 3309194), (7, 2836452), (12, 1654597), (14, 1418226), (21, 945484), (23, 863268), (28, 709113), (42, 472742), (43, 461748), (46, 431634), (69, 287756), (84, 236371), (86, 230874), (92, 215817), (129, 153916), (138, 143878), (161, 123324), (172, 115437), (239, 83076), (258, 76958), (276, 71939), (301, 65964), (322, 61662), (478, 41538), (483, 41108), (516, 38479), (602, 32982), (644, 30831), (717, 27692), (903, 21988), (956, 20769), (966, 20554), (989, 20076), (1204, 16491), (1434, 13846), (1673, 11868), (1806, 10994), (1932, 10277), (1978, 10038), (2868, 6923), (2967, 6692), (3346, 5934), (3612, 5497), (3956, 5019)]