218369529

素因数分解:

$3^2\times 7^2\times {\mathrm{347}}^1\times {\mathrm{1427}}^1$

素因数の和:1794

約数の個数: 36

約数和(自身を含む): 368235504

約数和(自身を除く): 149865975

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 347, 441, 1041, 1427, 2429, 3123, 4281, 7287, 9989, 12843, 17003, 21861, 29967, 51009, 69923, 89901, 153027, 209769, 495169, 629307, 1485507, 3466183, 4456521, 10398549, 24263281, 31195647, 72789843, 218369529]

約数ペア:

[(1, 218369529), (3, 72789843), (7, 31195647), (9, 24263281), (21, 10398549), (49, 4456521), (63, 3466183), (147, 1485507), (347, 629307), (441, 495169), (1041, 209769), (1427, 153027), (2429, 89901), (3123, 69923), (4281, 51009), (7287, 29967), (9989, 21861), (12843, 17003)]