20605018

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{241}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 36799488

約数和(自身を除く): 16194470

約数列:

[1, 2, 7, 14, 31, 62, 197, 217, 241, 394, 434, 482, 1379, 1687, 2758, 3374, 6107, 7471, 12214, 14942, 42749, 47477, 52297, 85498, 94954, 104594, 332339, 664678, 1471787, 2943574, 10302509, 20605018]

約数ペア:

[(1, 20605018), (2, 10302509), (7, 2943574), (14, 1471787), (31, 664678), (62, 332339), (197, 104594), (217, 94954), (241, 85498), (394, 52297), (434, 47477), (482, 42749), (1379, 14942), (1687, 12214), (2758, 7471), (3374, 6107)]