21095872

素因数分解:

$2^6\times 7^3\times {\mathrm{31}}^2$

素因数の和:95

約数の個数: 84

約数和(自身を含む): 50444400

約数和(自身を除く): 29348528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 49, 56, 62, 64, 98, 112, 124, 196, 217, 224, 248, 343, 392, 434, 448, 496, 686, 784, 868, 961, 992, 1372, 1519, 1568, 1736, 1922, 1984, 2744, 3038, 3136, 3472, 3844, 5488, 6076, 6727, 6944, 7688, 10633, 10976, 12152, 13454, 13888, 15376, 21266, 21952, 24304, 26908, 30752, 42532, 47089, 48608, 53816, 61504, 85064, 94178, 97216, 107632, 170128, 188356, 215264, 329623, 340256, 376712, 430528, 659246, 680512, 753424, 1318492, 1506848, 2636984, 3013696, 5273968, 10547936, 21095872]

約数ペア:

[(1, 21095872), (2, 10547936), (4, 5273968), (7, 3013696), (8, 2636984), (14, 1506848), (16, 1318492), (28, 753424), (31, 680512), (32, 659246), (49, 430528), (56, 376712), (62, 340256), (64, 329623), (98, 215264), (112, 188356), (124, 170128), (196, 107632), (217, 97216), (224, 94178), (248, 85064), (343, 61504), (392, 53816), (434, 48608), (448, 47089), (496, 42532), (686, 30752), (784, 26908), (868, 24304), (961, 21952), (992, 21266), (1372, 15376), (1519, 13888), (1568, 13454), (1736, 12152), (1922, 10976), (1984, 10633), (2744, 7688), (3038, 6944), (3136, 6727), (3472, 6076), (3844, 5488)]