20708.0000000

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{191}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 16773120

約数和(自身を除く): 10965192

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 181, 191, 362, 382, 543, 573, 724, 764, 1086, 1146, 1267, 1337, 1448, 1528, 2172, 2292, 2534, 2674, 3801, 4011, 4344, 4584, 5068, 5348, 7602, 8022, 10136, 10696, 15204, 16044, 30408, 32088, 34571, 69142, 103713, 138284, 207426, 241997, 276568, 414852, 483994, 725991, 829704, 967988, 1451982, 1935976, 2903964, 5807928]

約数ペア:

[(1, 5807928), (2, 2903964), (3, 1935976), (4, 1451982), (6, 967988), (7, 829704), (8, 725991), (12, 483994), (14, 414852), (21, 276568), (24, 241997), (28, 207426), (42, 138284), (56, 103713), (84, 69142), (168, 34571), (181, 32088), (191, 30408), (362, 16044), (382, 15204), (543, 10696), (573, 10136), (724, 8022), (764, 7602), (1086, 5348), (1146, 5068), (1267, 4584), (1337, 4344), (1448, 4011), (1528, 3801), (2172, 2674), (2292, 2534)]