20541003

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 32686080

約数和(自身を除く): 12145077

約数列:

[1, 3, 7, 21, 31, 93, 139, 217, 227, 417, 651, 681, 973, 1589, 2919, 4309, 4767, 7037, 12927, 21111, 30163, 31553, 49259, 90489, 94659, 147777, 220871, 662613, 978143, 2934429, 6847001, 20541003]

約数ペア:

[(1, 20541003), (3, 6847001), (7, 2934429), (21, 978143), (31, 662613), (93, 220871), (139, 147777), (217, 94659), (227, 90489), (417, 49259), (651, 31553), (681, 30163), (973, 21111), (1589, 12927), (2919, 7037), (4309, 4767)]