21587228

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{3169}}^1$

素因数の和:3317

約数の個数: 24

約数和(自身を含む): 41007120

約数和(自身を除く): 19419892

約数列:

[1, 2, 4, 13, 26, 52, 131, 262, 524, 1703, 3169, 3406, 6338, 6812, 12676, 41197, 82394, 164788, 415139, 830278, 1660556, 5396807, 10793614, 21587228]

約数ペア:

[(1, 21587228), (2, 10793614), (4, 5396807), (13, 1660556), (26, 830278), (52, 415139), (131, 164788), (262, 82394), (524, 41197), (1703, 12676), (3169, 6812), (3406, 6338)]