21990700

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{7583}}^1$

素因数の和:7626

約数の個数: 36

約数和(自身を含む): 49371840

約数和(自身を除く): 27381140

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 7583, 15166, 30332, 37915, 75830, 151660, 189575, 219907, 379150, 439814, 758300, 879628, 1099535, 2199070, 4398140, 5497675, 10995350, 21990700]

約数ペア:

[(1, 21990700), (2, 10995350), (4, 5497675), (5, 4398140), (10, 2199070), (20, 1099535), (25, 879628), (29, 758300), (50, 439814), (58, 379150), (100, 219907), (116, 189575), (145, 151660), (290, 75830), (580, 37915), (725, 30332), (1450, 15166), (2900, 7583)]