20227978981

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^2\times {\mathrm{2411}}^1$

素因数の和:2554

約数の個数: 48

約数和(自身を含む): 25533702144

約数和(自身を除く): 5305723163

約数列:

[1, 7, 23, 31, 41, 161, 217, 287, 713, 943, 1271, 1681, 2411, 4991, 6601, 8897, 11767, 16877, 29233, 38663, 52111, 55453, 74741, 98851, 204631, 270641, 364777, 388171, 523187, 691957, 1198553, 1719043, 2273573, 3064381, 4052891, 8389871, 12033301, 15915011, 21450667, 28370237, 70480763, 93216493, 125639621, 493365341, 652515451, 879477347, 2889711283, 20227978981]

約数ペア:

[(1, 20227978981), (7, 2889711283), (23, 879477347), (31, 652515451), (41, 493365341), (161, 125639621), (217, 93216493), (287, 70480763), (713, 28370237), (943, 21450667), (1271, 15915011), (1681, 12033301), (2411, 8389871), (4991, 4052891), (6601, 3064381), (8897, 2273573), (11767, 1719043), (16877, 1198553), (29233, 691957), (38663, 523187), (52111, 388171), (55453, 364777), (74741, 270641), (98851, 204631)]