20918464

素因数分解:

$2^6\times 7^1\times {\mathrm{53}}^1\times {\mathrm{881}}^1$

素因数の和:953

約数の個数: 56

約数和(自身を含む): 48390048

約数和(自身を除く): 27471584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 212, 224, 371, 424, 448, 742, 848, 881, 1484, 1696, 1762, 2968, 3392, 3524, 5936, 6167, 7048, 11872, 12334, 14096, 23744, 24668, 28192, 46693, 49336, 56384, 93386, 98672, 186772, 197344, 326851, 373544, 394688, 653702, 747088, 1307404, 1494176, 2614808, 2988352, 5229616, 10459232, 20918464]

約数ペア:

[(1, 20918464), (2, 10459232), (4, 5229616), (7, 2988352), (8, 2614808), (14, 1494176), (16, 1307404), (28, 747088), (32, 653702), (53, 394688), (56, 373544), (64, 326851), (106, 197344), (112, 186772), (212, 98672), (224, 93386), (371, 56384), (424, 49336), (448, 46693), (742, 28192), (848, 24668), (881, 23744), (1484, 14096), (1696, 12334), (1762, 11872), (2968, 7048), (3392, 6167), (3524, 5936)]