21318250

素因数分解:

$2^1\times 5^3\times {\mathrm{269}}^1\times {\mathrm{317}}^1$

素因数の和:603

約数の個数: 32

約数和(自身を含む): 40182480

約数和(自身を除く): 18864230

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 269, 317, 538, 634, 1345, 1585, 2690, 3170, 6725, 7925, 13450, 15850, 33625, 39625, 67250, 79250, 85273, 170546, 426365, 852730, 2131825, 4263650, 10659125, 21318250]

約数ペア:

[(1, 21318250), (2, 10659125), (5, 4263650), (10, 2131825), (25, 852730), (50, 426365), (125, 170546), (250, 85273), (269, 79250), (317, 67250), (538, 39625), (634, 33625), (1345, 15850), (1585, 13450), (2690, 7925), (3170, 6725)]