21971777

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:424

約数の個数: 16

約数和(自身を含む): 23708160

約数和(自身を除く): 1736383

約数列:

[1, 31, 41, 59, 293, 1271, 1829, 2419, 9083, 12013, 17287, 74989, 372403, 535897, 708767, 21971777]

約数ペア:

[(1, 21971777), (31, 708767), (41, 535897), (59, 372403), (293, 74989), (1271, 17287), (1829, 12013), (2419, 9083)]