21694100

素因数分解:

$2^2\times 5^2\times {\mathrm{401}}^1\times {\mathrm{541}}^1$

素因数の和:956

約数の個数: 36

約数和(自身を含む): 47280828

約数和(自身を除く): 25586728

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 401, 541, 802, 1082, 1604, 2005, 2164, 2705, 4010, 5410, 8020, 10025, 10820, 13525, 20050, 27050, 40100, 54100, 216941, 433882, 867764, 1084705, 2169410, 4338820, 5423525, 10847050, 21694100]

約数ペア:

[(1, 21694100), (2, 10847050), (4, 5423525), (5, 4338820), (10, 2169410), (20, 1084705), (25, 867764), (50, 433882), (100, 216941), (401, 54100), (541, 40100), (802, 27050), (1082, 20050), (1604, 13525), (2005, 10820), (2164, 10025), (2705, 8020), (4010, 5410)]