19991322

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2309}}^1$

素因数の和:2367

約数の個数: 48

約数和(自身を含む): 47927880

約数和(自身を除く): 27936558

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 37, 39, 74, 78, 111, 117, 222, 234, 333, 481, 666, 962, 1443, 2309, 2886, 4329, 4618, 6927, 8658, 13854, 20781, 30017, 41562, 60034, 85433, 90051, 170866, 180102, 256299, 270153, 512598, 540306, 768897, 1110629, 1537794, 2221258, 3331887, 6663774, 9995661, 19991322]

約数ペア:

[(1, 19991322), (2, 9995661), (3, 6663774), (6, 3331887), (9, 2221258), (13, 1537794), (18, 1110629), (26, 768897), (37, 540306), (39, 512598), (74, 270153), (78, 256299), (111, 180102), (117, 170866), (222, 90051), (234, 85433), (333, 60034), (481, 41562), (666, 30017), (962, 20781), (1443, 13854), (2309, 8658), (2886, 6927), (4329, 4618)]