18401684

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{577}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 39618432

約数和(自身を除く): 21216748

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 67, 68, 119, 134, 238, 268, 469, 476, 577, 938, 1139, 1154, 1876, 2278, 2308, 4039, 4556, 7973, 8078, 9809, 15946, 16156, 19618, 31892, 38659, 39236, 68663, 77318, 137326, 154636, 270613, 274652, 541226, 657203, 1082452, 1314406, 2628812, 4600421, 9200842, 18401684]

約数ペア:

[(1, 18401684), (2, 9200842), (4, 4600421), (7, 2628812), (14, 1314406), (17, 1082452), (28, 657203), (34, 541226), (67, 274652), (68, 270613), (119, 154636), (134, 137326), (238, 77318), (268, 68663), (469, 39236), (476, 38659), (577, 31892), (938, 19618), (1139, 16156), (1154, 15946), (1876, 9809), (2278, 8078), (2308, 7973), (4039, 4556)]