18348988

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 38191104

約数和(自身を除く): 19842116

約数列:

[1, 2, 4, 7, 14, 28, 47, 73, 94, 146, 188, 191, 292, 329, 382, 511, 658, 764, 1022, 1316, 1337, 2044, 2674, 3431, 5348, 6862, 8977, 13724, 13943, 17954, 24017, 27886, 35908, 48034, 55772, 62839, 96068, 97601, 125678, 195202, 251356, 390404, 655321, 1310642, 2621284, 4587247, 9174494, 18348988]

約数ペア:

[(1, 18348988), (2, 9174494), (4, 4587247), (7, 2621284), (14, 1310642), (28, 655321), (47, 390404), (73, 251356), (94, 195202), (146, 125678), (188, 97601), (191, 96068), (292, 62839), (329, 55772), (382, 48034), (511, 35908), (658, 27886), (764, 24017), (1022, 17954), (1316, 13943), (1337, 13724), (2044, 8977), (2674, 6862), (3431, 5348)]