21017696

素因数分解:

$2^5\times 7^1\times {\mathrm{101}}^1\times {\mathrm{929}}^1$

素因数の和:1047

約数の個数: 48

約数和(自身を含む): 47809440

約数和(自身を除く): 26791744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 101, 112, 202, 224, 404, 707, 808, 929, 1414, 1616, 1858, 2828, 3232, 3716, 5656, 6503, 7432, 11312, 13006, 14864, 22624, 26012, 29728, 52024, 93829, 104048, 187658, 208096, 375316, 656803, 750632, 1313606, 1501264, 2627212, 3002528, 5254424, 10508848, 21017696]

約数ペア:

[(1, 21017696), (2, 10508848), (4, 5254424), (7, 3002528), (8, 2627212), (14, 1501264), (16, 1313606), (28, 750632), (32, 656803), (56, 375316), (101, 208096), (112, 187658), (202, 104048), (224, 93829), (404, 52024), (707, 29728), (808, 26012), (929, 22624), (1414, 14864), (1616, 13006), (1858, 11312), (2828, 7432), (3232, 6503), (3716, 5656)]