20897487

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2053}}^1$

素因数の和:2104

約数の個数: 32

約数和(自身を含む): 34507200

約数和(自身を除く): 13609713

約数列:

[1, 3, 9, 13, 27, 29, 39, 87, 117, 261, 351, 377, 783, 1131, 2053, 3393, 6159, 10179, 18477, 26689, 55431, 59537, 80067, 178611, 240201, 535833, 720603, 773981, 1607499, 2321943, 6965829, 20897487]

約数ペア:

[(1, 20897487), (3, 6965829), (9, 2321943), (13, 1607499), (27, 773981), (29, 720603), (39, 535833), (87, 240201), (117, 178611), (261, 80067), (351, 59537), (377, 55431), (783, 26689), (1131, 18477), (2053, 10179), (3393, 6159)]