20128518

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{30223}}^1$

素因数の和:30268

約数の個数: 24

約数和(自身を含む): 44791968

約数和(自身を除く): 24663450

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666, 30223, 60446, 90669, 181338, 272007, 544014, 1118251, 2236502, 3354753, 6709506, 10064259, 20128518]

約数ペア:

[(1, 20128518), (2, 10064259), (3, 6709506), (6, 3354753), (9, 2236502), (18, 1118251), (37, 544014), (74, 272007), (111, 181338), (222, 90669), (333, 60446), (666, 30223)]