19719441

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{439}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 35143680

約数和(自身を除く): 15424239

約数列:

[1, 3, 7, 9, 21, 23, 31, 63, 69, 93, 161, 207, 217, 279, 439, 483, 651, 713, 1317, 1449, 1953, 2139, 3073, 3951, 4991, 6417, 9219, 10097, 13609, 14973, 27657, 30291, 40827, 44919, 70679, 90873, 95263, 122481, 212037, 285789, 313007, 636111, 857367, 939021, 2191049, 2817063, 6573147, 19719441]

約数ペア:

[(1, 19719441), (3, 6573147), (7, 2817063), (9, 2191049), (21, 939021), (23, 857367), (31, 636111), (63, 313007), (69, 285789), (93, 212037), (161, 122481), (207, 95263), (217, 90873), (279, 70679), (439, 44919), (483, 40827), (651, 30291), (713, 27657), (1317, 14973), (1449, 13609), (1953, 10097), (2139, 9219), (3073, 6417), (3951, 4991)]