19516028

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 40395264

約数和(自身を除く): 20879236

約数列:

[1, 2, 4, 7, 14, 28, 67, 101, 103, 134, 202, 206, 268, 404, 412, 469, 707, 721, 938, 1414, 1442, 1876, 2828, 2884, 6767, 6901, 10403, 13534, 13802, 20806, 27068, 27604, 41612, 47369, 48307, 72821, 94738, 96614, 145642, 189476, 193228, 291284, 697001, 1394002, 2788004, 4879007, 9758014, 19516028]

約数ペア:

[(1, 19516028), (2, 9758014), (4, 4879007), (7, 2788004), (14, 1394002), (28, 697001), (67, 291284), (101, 193228), (103, 189476), (134, 145642), (202, 96614), (206, 94738), (268, 72821), (404, 48307), (412, 47369), (469, 41612), (707, 27604), (721, 27068), (938, 20806), (1414, 13802), (1442, 13534), (1876, 10403), (2828, 6901), (2884, 6767)]