18649904

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12809}}^1$

素因数の和:12837

約数の個数: 40

約数和(自身を含む): 44476320

約数和(自身を除く): 25826416

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12809, 25618, 51236, 89663, 102472, 166517, 179326, 204944, 333034, 358652, 666068, 717304, 1165619, 1332136, 1434608, 2331238, 2664272, 4662476, 9324952, 18649904]

約数ペア:

[(1, 18649904), (2, 9324952), (4, 4662476), (7, 2664272), (8, 2331238), (13, 1434608), (14, 1332136), (16, 1165619), (26, 717304), (28, 666068), (52, 358652), (56, 333034), (91, 204944), (104, 179326), (112, 166517), (182, 102472), (208, 89663), (364, 51236), (728, 25618), (1456, 12809)]