21955750

素因数分解:

$2^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{2833}}^1$

素因数の和:2881

約数の個数: 32

約数和(自身を含む): 42441984

約数和(自身を除く): 20486234

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 125, 155, 250, 310, 775, 1550, 2833, 3875, 5666, 7750, 14165, 28330, 70825, 87823, 141650, 175646, 354125, 439115, 708250, 878230, 2195575, 4391150, 10977875, 21955750]

約数ペア:

[(1, 21955750), (2, 10977875), (5, 4391150), (10, 2195575), (25, 878230), (31, 708250), (50, 439115), (62, 354125), (125, 175646), (155, 141650), (250, 87823), (310, 70825), (775, 28330), (1550, 14165), (2833, 7750), (3875, 5666)]