18201638

素因数分解:

$2^1\times 7^3\times {\mathrm{13}}^2\times {\mathrm{157}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 34696800

約数和(自身を除く): 16495162

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 157, 169, 182, 314, 338, 343, 637, 686, 1099, 1183, 1274, 2041, 2198, 2366, 4082, 4459, 7693, 8281, 8918, 14287, 15386, 16562, 26533, 28574, 53066, 53851, 57967, 100009, 107702, 115934, 185731, 200018, 371462, 700063, 1300117, 1400126, 2600234, 9100819, 18201638]

約数ペア:

[(1, 18201638), (2, 9100819), (7, 2600234), (13, 1400126), (14, 1300117), (26, 700063), (49, 371462), (91, 200018), (98, 185731), (157, 115934), (169, 107702), (182, 100009), (314, 57967), (338, 53851), (343, 53066), (637, 28574), (686, 26533), (1099, 16562), (1183, 15386), (1274, 14287), (2041, 8918), (2198, 8281), (2366, 7693), (4082, 4459)]