31205421

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{541}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 53267760

約数和(自身を除く): 22062339

約数列:

[1, 3, 9, 13, 17, 29, 39, 51, 87, 117, 153, 221, 261, 377, 493, 541, 663, 1131, 1479, 1623, 1989, 3393, 4437, 4869, 6409, 7033, 9197, 15689, 19227, 21099, 27591, 47067, 57681, 63297, 82773, 119561, 141201, 203957, 266713, 358683, 611871, 800139, 1076049, 1835613, 2400417, 3467269, 10401807, 31205421]

約数ペア:

[(1, 31205421), (3, 10401807), (9, 3467269), (13, 2400417), (17, 1835613), (29, 1076049), (39, 800139), (51, 611871), (87, 358683), (117, 266713), (153, 203957), (221, 141201), (261, 119561), (377, 82773), (493, 63297), (541, 57681), (663, 47067), (1131, 27591), (1479, 21099), (1623, 19227), (1989, 15689), (3393, 9197), (4437, 7033), (4869, 6409)]