40721247

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{179}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 70986240

約数和(自身を除く): 30264993

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 157, 161, 179, 207, 471, 483, 537, 1099, 1253, 1413, 1449, 1611, 3297, 3611, 3759, 4117, 9891, 10833, 11277, 12351, 25277, 28103, 28819, 32499, 37053, 75831, 84309, 86457, 196721, 227493, 252927, 259371, 590163, 646369, 1770489, 1939107, 4524583, 5817321, 13573749, 40721247]

約数ペア:

[(1, 40721247), (3, 13573749), (7, 5817321), (9, 4524583), (21, 1939107), (23, 1770489), (63, 646369), (69, 590163), (157, 259371), (161, 252927), (179, 227493), (207, 196721), (471, 86457), (483, 84309), (537, 75831), (1099, 37053), (1253, 32499), (1413, 28819), (1449, 28103), (1611, 25277), (3297, 12351), (3611, 11277), (3759, 10833), (4117, 9891)]