20781322

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1\times {\mathrm{373}}^1$

素因数の和:777

約数の個数: 16

約数和(自身を含む): 31707720

約数和(自身を除く): 10926398

約数列:

[1, 2, 89, 178, 313, 373, 626, 746, 27857, 33197, 55714, 66394, 116749, 233498, 10390661, 20781322]

約数ペア:

[(1, 20781322), (2, 10390661), (89, 233498), (178, 116749), (313, 66394), (373, 55714), (626, 33197), (746, 27857)]