21540071

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{5839}}^1$

素因数の和:5894

約数の個数: 16

約数和(自身を含む): 26910720

約数和(自身を除く): 5370649

約数列:

[1, 7, 17, 31, 119, 217, 527, 3689, 5839, 40873, 99263, 181009, 694841, 1267063, 3077153, 21540071]

約数ペア:

[(1, 21540071), (7, 3077153), (17, 1267063), (31, 694841), (119, 181009), (217, 99263), (527, 40873), (3689, 5839)]