21949521

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:298

約数の個数: 32

約数和(自身を含む): 33730560

約数和(自身を除く): 11781039

約数列:

[1, 3, 11, 23, 33, 69, 121, 239, 253, 363, 717, 759, 1331, 2629, 2783, 3993, 5497, 7887, 8349, 16491, 28919, 30613, 60467, 86757, 91839, 181401, 318109, 665137, 954327, 1995411, 7316507, 21949521]

約数ペア:

[(1, 21949521), (3, 7316507), (11, 1995411), (23, 954327), (33, 665137), (69, 318109), (121, 181401), (239, 91839), (253, 86757), (363, 60467), (717, 30613), (759, 28919), (1331, 16491), (2629, 8349), (2783, 7887), (3993, 5497)]