21198688

素因数分解:

$2^5\times 7^1\times {\mathrm{101}}^1\times {\mathrm{937}}^1$

素因数の和:1055

約数の個数: 48

約数和(自身を含む): 48220704

約数和(自身を除く): 27022016

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 101, 112, 202, 224, 404, 707, 808, 937, 1414, 1616, 1874, 2828, 3232, 3748, 5656, 6559, 7496, 11312, 13118, 14992, 22624, 26236, 29984, 52472, 94637, 104944, 189274, 209888, 378548, 662459, 757096, 1324918, 1514192, 2649836, 3028384, 5299672, 10599344, 21198688]

約数ペア:

[(1, 21198688), (2, 10599344), (4, 5299672), (7, 3028384), (8, 2649836), (14, 1514192), (16, 1324918), (28, 757096), (32, 662459), (56, 378548), (101, 209888), (112, 189274), (202, 104944), (224, 94637), (404, 52472), (707, 29984), (808, 26236), (937, 22624), (1414, 14992), (1616, 13118), (1874, 11312), (2828, 7496), (3232, 6559), (3748, 5656)]