20837904

素因数分解:

$2^4\times 3^1\times {\mathrm{53}}^1\times {\mathrm{8191}}^1$

素因数の和:8255

約数の個数: 40

約数和(自身を含む): 54853632

約数和(自身を除く): 34015728

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 53, 106, 159, 212, 318, 424, 636, 848, 1272, 2544, 8191, 16382, 24573, 32764, 49146, 65528, 98292, 131056, 196584, 393168, 434123, 868246, 1302369, 1736492, 2604738, 3472984, 5209476, 6945968, 10418952, 20837904]

約数ペア:

[(1, 20837904), (2, 10418952), (3, 6945968), (4, 5209476), (6, 3472984), (8, 2604738), (12, 1736492), (16, 1302369), (24, 868246), (48, 434123), (53, 393168), (106, 196584), (159, 131056), (212, 98292), (318, 65528), (424, 49146), (636, 32764), (848, 24573), (1272, 16382), (2544, 8191)]