19377904

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{13309}}^1$

素因数の和:13337

約数の個数: 40

約数和(自身を含む): 46212320

約数和(自身を除く): 26834416

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 13309, 26618, 53236, 93163, 106472, 173017, 186326, 212944, 346034, 372652, 692068, 745304, 1211119, 1384136, 1490608, 2422238, 2768272, 4844476, 9688952, 19377904]

約数ペア:

[(1, 19377904), (2, 9688952), (4, 4844476), (7, 2768272), (8, 2422238), (13, 1490608), (14, 1384136), (16, 1211119), (26, 745304), (28, 692068), (52, 372652), (56, 346034), (91, 212944), (104, 186326), (112, 173017), (182, 106472), (208, 93163), (364, 53236), (728, 26618), (1456, 13309)]