1987839

素因数分解:

$3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:379

約数の個数: 24

約数和(自身を含む): 3319680

約数和(自身を除く): 1331841

約数列:

[1, 3, 7, 9, 21, 63, 139, 227, 417, 681, 973, 1251, 1589, 2043, 2919, 4767, 8757, 14301, 31553, 94659, 220871, 283977, 662613, 1987839]

約数ペア:

[(1, 1987839), (3, 662613), (7, 283977), (9, 220871), (21, 94659), (63, 31553), (139, 14301), (227, 8757), (417, 4767), (681, 2919), (973, 2043), (1251, 1589)]