20672484

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{571}}^1$

素因数の和:1016

約数の個数: 48

約数和(自身を含む): 55351296

約数和(自身を除く): 34678812

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 431, 571, 862, 1142, 1293, 1713, 1724, 2284, 2586, 3017, 3426, 3997, 5172, 6034, 6852, 7994, 9051, 11991, 12068, 15988, 18102, 23982, 36204, 47964, 246101, 492202, 738303, 984404, 1476606, 1722707, 2953212, 3445414, 5168121, 6890828, 10336242, 20672484]

約数ペア:

[(1, 20672484), (2, 10336242), (3, 6890828), (4, 5168121), (6, 3445414), (7, 2953212), (12, 1722707), (14, 1476606), (21, 984404), (28, 738303), (42, 492202), (84, 246101), (431, 47964), (571, 36204), (862, 23982), (1142, 18102), (1293, 15988), (1713, 12068), (1724, 11991), (2284, 9051), (2586, 7994), (3017, 6852), (3426, 6034), (3997, 5172)]