21086928

素因数分解:

$2^4\times 3^2\times {\mathrm{146437}}^1$

素因数の和:146451

約数の個数: 30

約数和(自身を含む): 59014514

約数和(自身を除く): 37927586

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 146437, 292874, 439311, 585748, 878622, 1171496, 1317933, 1757244, 2342992, 2635866, 3514488, 5271732, 7028976, 10543464, 21086928]

約数ペア:

[(1, 21086928), (2, 10543464), (3, 7028976), (4, 5271732), (6, 3514488), (8, 2635866), (9, 2342992), (12, 1757244), (16, 1317933), (18, 1171496), (24, 878622), (36, 585748), (48, 439311), (72, 292874), (144, 146437)]