21960801

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{9349}}^1$

素因数の和:9390

約数の個数: 20

約数和(自身を含む): 33940500

約数和(自身を除く): 11979699

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 9349, 28047, 84141, 252423, 271121, 757269, 813363, 2440089, 7320267, 21960801]

約数ペア:

[(1, 21960801), (3, 7320267), (9, 2440089), (27, 813363), (29, 757269), (81, 271121), (87, 252423), (261, 84141), (783, 28047), (2349, 9349)]