21090250

素因数分解:

$2^1\times 5^3\times {\mathrm{29}}^1\times {\mathrm{2909}}^1$

素因数の和:2955

約数の個数: 32

約数和(自身を含む): 40856400

約数和(自身を除く): 19766150

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 125, 145, 250, 290, 725, 1450, 2909, 3625, 5818, 7250, 14545, 29090, 72725, 84361, 145450, 168722, 363625, 421805, 727250, 843610, 2109025, 4218050, 10545125, 21090250]

約数ペア:

[(1, 21090250), (2, 10545125), (5, 4218050), (10, 2109025), (25, 843610), (29, 727250), (50, 421805), (58, 363625), (125, 168722), (145, 145450), (250, 84361), (290, 72725), (725, 29090), (1450, 14545), (2909, 7250), (3625, 5818)]