21524020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{153743}}^1$

素因数の和:153759

約数の個数: 24

約数和(自身を含む): 51657984

約数和(自身を除く): 30133964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 153743, 307486, 614972, 768715, 1076201, 1537430, 2152402, 3074860, 4304804, 5381005, 10762010, 21524020]

約数ペア:

[(1, 21524020), (2, 10762010), (4, 5381005), (5, 4304804), (7, 3074860), (10, 2152402), (14, 1537430), (20, 1076201), (28, 768715), (35, 614972), (70, 307486), (140, 153743)]