18388468

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 38223360

約数和(自身を除く): 19834892

約数列:

[1, 2, 4, 7, 14, 28, 47, 89, 94, 157, 178, 188, 314, 329, 356, 623, 628, 658, 1099, 1246, 1316, 2198, 2492, 4183, 4396, 7379, 8366, 13973, 14758, 16732, 27946, 29281, 29516, 51653, 55892, 58562, 97811, 103306, 117124, 195622, 206612, 391244, 656731, 1313462, 2626924, 4597117, 9194234, 18388468]

約数ペア:

[(1, 18388468), (2, 9194234), (4, 4597117), (7, 2626924), (14, 1313462), (28, 656731), (47, 391244), (89, 206612), (94, 195622), (157, 117124), (178, 103306), (188, 97811), (314, 58562), (329, 55892), (356, 51653), (623, 29516), (628, 29281), (658, 27946), (1099, 16732), (1246, 14758), (1316, 13973), (2198, 8366), (2492, 7379), (4183, 4396)]