21104738

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{4663}}^1$

素因数の和:4769

約数の個数: 16

約数和(自身を含む): 33133056

約数和(自身を除く): 12028318

約数列:

[1, 2, 31, 62, 73, 146, 2263, 4526, 4663, 9326, 144553, 289106, 340399, 680798, 10552369, 21104738]

約数ペア:

[(1, 21104738), (2, 10552369), (31, 680798), (62, 340399), (73, 289106), (146, 144553), (2263, 9326), (4526, 4663)]