21971568

素因数分解:

$2^4\times 3^1\times {\mathrm{397}}^1\times {\mathrm{1153}}^1$

素因数の和:1561

約数の個数: 40

約数和(自身を含む): 56952208

約数和(自身を除く): 34980640

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 397, 794, 1153, 1191, 1588, 2306, 2382, 3176, 3459, 4612, 4764, 6352, 6918, 9224, 9528, 13836, 18448, 19056, 27672, 55344, 457741, 915482, 1373223, 1830964, 2746446, 3661928, 5492892, 7323856, 10985784, 21971568]

約数ペア:

[(1, 21971568), (2, 10985784), (3, 7323856), (4, 5492892), (6, 3661928), (8, 2746446), (12, 1830964), (16, 1373223), (24, 915482), (48, 457741), (397, 55344), (794, 27672), (1153, 19056), (1191, 18448), (1588, 13836), (2306, 9528), (2382, 9224), (3176, 6918), (3459, 6352), (4612, 4764)]