21905716

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{25237}}^1$

素因数の和:25279

約数の個数: 24

約数和(自身を含む): 45226496

約数和(自身を除く): 23320780

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 25237, 50474, 100948, 176659, 353318, 706636, 782347, 1564694, 3129388, 5476429, 10952858, 21905716]

約数ペア:

[(1, 21905716), (2, 10952858), (4, 5476429), (7, 3129388), (14, 1564694), (28, 782347), (31, 706636), (62, 353318), (124, 176659), (217, 100948), (434, 50474), (868, 25237)]