9991688

素因数分解:

$2^3\times 7^2\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 22161600

約数和(自身を除く): 12169912

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 71, 98, 142, 196, 284, 359, 392, 497, 568, 718, 994, 1436, 1988, 2513, 2872, 3479, 3976, 5026, 6958, 10052, 13916, 17591, 20104, 25489, 27832, 35182, 50978, 70364, 101956, 140728, 178423, 203912, 356846, 713692, 1248961, 1427384, 2497922, 4995844, 9991688]

約数ペア:

[(1, 9991688), (2, 4995844), (4, 2497922), (7, 1427384), (8, 1248961), (14, 713692), (28, 356846), (49, 203912), (56, 178423), (71, 140728), (98, 101956), (142, 70364), (196, 50978), (284, 35182), (359, 27832), (392, 25489), (497, 20104), (568, 17591), (718, 13916), (994, 10052), (1436, 6958), (1988, 5026), (2513, 3976), (2872, 3479)]