21988164

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1061}}^1$

素因数の和:1236

約数の個数: 48

約数和(自身を含む): 56379456

約数和(自身を除く): 34391292

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 157, 314, 471, 628, 942, 1061, 1727, 1884, 2122, 3183, 3454, 4244, 5181, 6366, 6908, 10362, 11671, 12732, 20724, 23342, 35013, 46684, 70026, 140052, 166577, 333154, 499731, 666308, 999462, 1832347, 1998924, 3664694, 5497041, 7329388, 10994082, 21988164]

約数ペア:

[(1, 21988164), (2, 10994082), (3, 7329388), (4, 5497041), (6, 3664694), (11, 1998924), (12, 1832347), (22, 999462), (33, 666308), (44, 499731), (66, 333154), (132, 166577), (157, 140052), (314, 70026), (471, 46684), (628, 35013), (942, 23342), (1061, 20724), (1727, 12732), (1884, 11671), (2122, 10362), (3183, 6908), (3454, 6366), (4244, 5181)]