20399988

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{10559}}^1$

素因数の和:10596

約数の個数: 48

約数和(自身を含む): 56770560

約数和(自身を除く): 36370572

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 69, 84, 92, 138, 161, 276, 322, 483, 644, 966, 1932, 10559, 21118, 31677, 42236, 63354, 73913, 126708, 147826, 221739, 242857, 295652, 443478, 485714, 728571, 886956, 971428, 1457142, 1699999, 2914284, 3399998, 5099997, 6799996, 10199994, 20399988]

約数ペア:

[(1, 20399988), (2, 10199994), (3, 6799996), (4, 5099997), (6, 3399998), (7, 2914284), (12, 1699999), (14, 1457142), (21, 971428), (23, 886956), (28, 728571), (42, 485714), (46, 443478), (69, 295652), (84, 242857), (92, 221739), (138, 147826), (161, 126708), (276, 73913), (322, 63354), (483, 42236), (644, 31677), (966, 21118), (1932, 10559)]