21875980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156257}}^1$

素因数の和:156273

約数の個数: 24

約数和(自身を含む): 52502688

約数和(自身を除く): 30626708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156257, 312514, 625028, 781285, 1093799, 1562570, 2187598, 3125140, 4375196, 5468995, 10937990, 21875980]

約数ペア:

[(1, 21875980), (2, 10937990), (4, 5468995), (5, 4375196), (7, 3125140), (10, 2187598), (14, 1562570), (20, 1093799), (28, 781285), (35, 625028), (70, 312514), (140, 156257)]