21955545

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{25679}}^1$

素因数の和:25709

約数の個数: 24

約数和(自身を含む): 40060800

約数和(自身を除く): 18105255

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 25679, 77037, 128395, 231111, 385185, 487901, 1155555, 1463703, 2439505, 4391109, 7318515, 21955545]

約数ペア:

[(1, 21955545), (3, 7318515), (5, 4391109), (9, 2439505), (15, 1463703), (19, 1155555), (45, 487901), (57, 385185), (95, 231111), (171, 128395), (285, 77037), (855, 25679)]