21942388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{739}}^1$

素因数の和:1327

約数の個数: 24

約数和(自身を含む): 41481440

約数和(自身を除く): 19539052

約数列:

[1, 2, 4, 13, 26, 52, 571, 739, 1142, 1478, 2284, 2956, 7423, 9607, 14846, 19214, 29692, 38428, 421969, 843938, 1687876, 5485597, 10971194, 21942388]

約数ペア:

[(1, 21942388), (2, 10971194), (4, 5485597), (13, 1687876), (26, 843938), (52, 421969), (571, 38428), (739, 29692), (1142, 19214), (1478, 14846), (2284, 9607), (2956, 7423)]