21356384

素因数分解:

$2^5\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1423}}^1$

素因数の和:1507

約数の個数: 48

約数和(自身を含む): 48803328

約数和(自身を除く): 27446944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 67, 112, 134, 224, 268, 469, 536, 938, 1072, 1423, 1876, 2144, 2846, 3752, 5692, 7504, 9961, 11384, 15008, 19922, 22768, 39844, 45536, 79688, 95341, 159376, 190682, 318752, 381364, 667387, 762728, 1334774, 1525456, 2669548, 3050912, 5339096, 10678192, 21356384]

約数ペア:

[(1, 21356384), (2, 10678192), (4, 5339096), (7, 3050912), (8, 2669548), (14, 1525456), (16, 1334774), (28, 762728), (32, 667387), (56, 381364), (67, 318752), (112, 190682), (134, 159376), (224, 95341), (268, 79688), (469, 45536), (536, 39844), (938, 22768), (1072, 19922), (1423, 15008), (1876, 11384), (2144, 9961), (2846, 7504), (3752, 5692)]