19405904

素因数分解:

$2^4\times 7^1\times {\mathrm{173267}}^1$

素因数の和:173282

約数の個数: 20

約数和(自身を含む): 42970464

約数和(自身を除く): 23564560

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 173267, 346534, 693068, 1212869, 1386136, 2425738, 2772272, 4851476, 9702952, 19405904]

約数ペア:

[(1, 19405904), (2, 9702952), (4, 4851476), (7, 2772272), (8, 2425738), (14, 1386136), (16, 1212869), (28, 693068), (56, 346534), (112, 173267)]