20955207

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1301}}^1$

素因数の和:1383

約数の個数: 32

約数和(自身を含む): 34997760

約数和(自身を除く): 14042553

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 177, 273, 413, 767, 1239, 1301, 2301, 3903, 5369, 9107, 16107, 16913, 27321, 50739, 76759, 118391, 230277, 355173, 537313, 997867, 1611939, 2993601, 6985069, 20955207]

約数ペア:

[(1, 20955207), (3, 6985069), (7, 2993601), (13, 1611939), (21, 997867), (39, 537313), (59, 355173), (91, 230277), (177, 118391), (273, 76759), (413, 50739), (767, 27321), (1239, 16913), (1301, 16107), (2301, 9107), (3903, 5369)]