19939978

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1\times {\mathrm{601}}^1$

素因数の和:969

約数の個数: 16

約数和(自身を含む): 30622536

約数和(自身を除く): 10682558

約数列:

[1, 2, 53, 106, 313, 601, 626, 1202, 16589, 31853, 33178, 63706, 188113, 376226, 9969989, 19939978]

約数ペア:

[(1, 19939978), (2, 9969989), (53, 376226), (106, 188113), (313, 63706), (601, 33178), (626, 31853), (1202, 16589)]