21945272

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{827}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 42923520

約数和(自身を除く): 20978248

約数列:

[1, 2, 4, 8, 31, 62, 107, 124, 214, 248, 428, 827, 856, 1654, 3308, 3317, 6616, 6634, 13268, 25637, 26536, 51274, 88489, 102548, 176978, 205096, 353956, 707912, 2743159, 5486318, 10972636, 21945272]

約数ペア:

[(1, 21945272), (2, 10972636), (4, 5486318), (8, 2743159), (31, 707912), (62, 353956), (107, 205096), (124, 176978), (214, 102548), (248, 88489), (428, 51274), (827, 26536), (856, 25637), (1654, 13268), (3308, 6634), (3317, 6616)]