19900428

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{72103}}^1$

素因数の和:72133

約数の個数: 24

約数和(自身を含む): 48453888

約数和(自身を除く): 28553460

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 276, 72103, 144206, 216309, 288412, 432618, 865236, 1658369, 3316738, 4975107, 6633476, 9950214, 19900428]

約数ペア:

[(1, 19900428), (2, 9950214), (3, 6633476), (4, 4975107), (6, 3316738), (12, 1658369), (23, 865236), (46, 432618), (69, 288412), (92, 216309), (138, 144206), (276, 72103)]