21330177

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 32762880

約数和(自身を除く): 11432703

約数列:

[1, 3, 11, 23, 33, 69, 157, 179, 253, 471, 537, 759, 1727, 1969, 3611, 4117, 5181, 5907, 10833, 12351, 28103, 39721, 45287, 84309, 119163, 135861, 309133, 646369, 927399, 1939107, 7110059, 21330177]

約数ペア:

[(1, 21330177), (3, 7110059), (11, 1939107), (23, 927399), (33, 646369), (69, 309133), (157, 135861), (179, 119163), (253, 84309), (471, 45287), (537, 39721), (759, 28103), (1727, 12351), (1969, 10833), (3611, 5907), (4117, 5181)]