21989632

素因数分解:

$2^8\times 7^2\times {\mathrm{1753}}^1$

素因数の和:1783

約数の個数: 54

約数和(自身を含む): 51088758

約数和(自身を除く): 29099126

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 784, 896, 1568, 1753, 1792, 3136, 3506, 6272, 7012, 12271, 12544, 14024, 24542, 28048, 49084, 56096, 85897, 98168, 112192, 171794, 196336, 224384, 343588, 392672, 448768, 687176, 785344, 1374352, 1570688, 2748704, 3141376, 5497408, 10994816, 21989632]

約数ペア:

[(1, 21989632), (2, 10994816), (4, 5497408), (7, 3141376), (8, 2748704), (14, 1570688), (16, 1374352), (28, 785344), (32, 687176), (49, 448768), (56, 392672), (64, 343588), (98, 224384), (112, 196336), (128, 171794), (196, 112192), (224, 98168), (256, 85897), (392, 56096), (448, 49084), (784, 28048), (896, 24542), (1568, 14024), (1753, 12544), (1792, 12271), (3136, 7012), (3506, 6272)]