20747916

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{293}}^1$

素因数の和:591

約数の個数: 72

約数和(自身を含む): 60357024

約数和(自身を除く): 39609108

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 281, 293, 562, 586, 843, 879, 1124, 1172, 1686, 1758, 1967, 2051, 2529, 2637, 3372, 3516, 3934, 4102, 5058, 5274, 5901, 6153, 7868, 8204, 10116, 10548, 11802, 12306, 17703, 18459, 23604, 24612, 35406, 36918, 70812, 73836, 82333, 164666, 246999, 329332, 493998, 576331, 740997, 987996, 1152662, 1481994, 1728993, 2305324, 2963988, 3457986, 5186979, 6915972, 10373958, 20747916]

約数ペア:

[(1, 20747916), (2, 10373958), (3, 6915972), (4, 5186979), (6, 3457986), (7, 2963988), (9, 2305324), (12, 1728993), (14, 1481994), (18, 1152662), (21, 987996), (28, 740997), (36, 576331), (42, 493998), (63, 329332), (84, 246999), (126, 164666), (252, 82333), (281, 73836), (293, 70812), (562, 36918), (586, 35406), (843, 24612), (879, 23604), (1124, 18459), (1172, 17703), (1686, 12306), (1758, 11802), (1967, 10548), (2051, 10116), (2529, 8204), (2637, 7868), (3372, 6153), (3516, 5901), (3934, 5274), (4102, 5058)]