21644120

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2833}}^1$

素因数の和:3035

約数の個数: 32

約数和(自身を含む): 48971520

約数和(自身を除く): 27327400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2833, 3820, 5666, 7640, 11332, 14165, 22664, 28330, 56660, 113320, 541103, 1082206, 2164412, 2705515, 4328824, 5411030, 10822060, 21644120]

約数ペア:

[(1, 21644120), (2, 10822060), (4, 5411030), (5, 4328824), (8, 2705515), (10, 2164412), (20, 1082206), (40, 541103), (191, 113320), (382, 56660), (764, 28330), (955, 22664), (1528, 14165), (1910, 11332), (2833, 7640), (3820, 5666)]