21722649

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 33164544

約数和(自身を除く): 11441895

約数列:

[1, 3, 13, 23, 39, 61, 69, 183, 299, 397, 793, 897, 1191, 1403, 2379, 4209, 5161, 9131, 15483, 18239, 24217, 27393, 54717, 72651, 118703, 314821, 356109, 556991, 944463, 1670973, 7240883, 21722649]

約数ペア:

[(1, 21722649), (3, 7240883), (13, 1670973), (23, 944463), (39, 556991), (61, 356109), (69, 314821), (183, 118703), (299, 72651), (397, 54717), (793, 27393), (897, 24217), (1191, 18239), (1403, 15483), (2379, 9131), (4209, 5161)]