20741504

素因数分解:

$2^7\times 7^2\times {\mathrm{3307}}^1$

素因数の和:3335

約数の個数: 48

約数和(自身を含む): 48081780

約数和(自身を除く): 27340276

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 3307, 6272, 6614, 13228, 23149, 26456, 46298, 52912, 92596, 105824, 162043, 185192, 211648, 324086, 370384, 423296, 648172, 740768, 1296344, 1481536, 2592688, 2963072, 5185376, 10370752, 20741504]

約数ペア:

[(1, 20741504), (2, 10370752), (4, 5185376), (7, 2963072), (8, 2592688), (14, 1481536), (16, 1296344), (28, 740768), (32, 648172), (49, 423296), (56, 370384), (64, 324086), (98, 211648), (112, 185192), (128, 162043), (196, 105824), (224, 92596), (392, 52912), (448, 46298), (784, 26456), (896, 23149), (1568, 13228), (3136, 6614), (3307, 6272)]