21972286

素因数分解:

$2^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{1613}}^1$

素因数の和:1768

約数の個数: 24

約数和(自身を含む): 38639160

約数和(自身を除く): 16666874

約数列:

[1, 2, 7, 14, 49, 98, 139, 278, 973, 1613, 1946, 3226, 6811, 11291, 13622, 22582, 79037, 158074, 224207, 448414, 1569449, 3138898, 10986143, 21972286]

約数ペア:

[(1, 21972286), (2, 10986143), (7, 3138898), (14, 1569449), (49, 448414), (98, 224207), (139, 158074), (278, 79037), (973, 22582), (1613, 13622), (1946, 11291), (3226, 6811)]