18779768

素因数分解:

$2^3\times 7^1\times {\mathrm{491}}^1\times {\mathrm{683}}^1$

素因数の和:1187

約数の個数: 32

約数和(自身を含む): 40383360

約数和(自身を除く): 21603592

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 491, 683, 982, 1366, 1964, 2732, 3437, 3928, 4781, 5464, 6874, 9562, 13748, 19124, 27496, 38248, 335353, 670706, 1341412, 2347471, 2682824, 4694942, 9389884, 18779768]

約数ペア:

[(1, 18779768), (2, 9389884), (4, 4694942), (7, 2682824), (8, 2347471), (14, 1341412), (28, 670706), (56, 335353), (491, 38248), (683, 27496), (982, 19124), (1366, 13748), (1964, 9562), (2732, 6874), (3437, 5464), (3928, 4781)]