21346786

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{2477}}^1$

素因数の和:2649

約数の個数: 16

約数和(自身を含む): 33304320

約数和(自身を除く): 11957534

約数列:

[1, 2, 31, 62, 139, 278, 2477, 4309, 4954, 8618, 76787, 153574, 344303, 688606, 10673393, 21346786]

約数ペア:

[(1, 21346786), (2, 10673393), (31, 688606), (62, 344303), (139, 153574), (278, 76787), (2477, 8618), (4309, 4954)]