18772208

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12893}}^1$

素因数の和:12921

約数の個数: 40

約数和(自身を含む): 44767968

約数和(自身を除く): 25995760

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12893, 25786, 51572, 90251, 103144, 167609, 180502, 206288, 335218, 361004, 670436, 722008, 1173263, 1340872, 1444016, 2346526, 2681744, 4693052, 9386104, 18772208]

約数ペア:

[(1, 18772208), (2, 9386104), (4, 4693052), (7, 2681744), (8, 2346526), (13, 1444016), (14, 1340872), (16, 1173263), (26, 722008), (28, 670436), (52, 361004), (56, 335218), (91, 206288), (104, 180502), (112, 167609), (182, 103144), (208, 90251), (364, 51572), (728, 25786), (1456, 12893)]