19957726

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1\times {\mathrm{953}}^1$

素因数の和:1275

約数の個数: 16

約数和(自身を含む): 30886704

約数和(自身を除く): 10928978

約数列:

[1, 2, 37, 74, 283, 566, 953, 1906, 10471, 20942, 35261, 70522, 269699, 539398, 9978863, 19957726]

約数ペア:

[(1, 19957726), (2, 9978863), (37, 539398), (74, 269699), (283, 70522), (566, 35261), (953, 20942), (1906, 10471)]