21006500

素因数分解:

$2^2\times 5^3\times {\mathrm{42013}}^1$

素因数の和:42032

約数の個数: 24

約数和(自身を含む): 45879288

約数和(自身を除く): 24872788

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 42013, 84026, 168052, 210065, 420130, 840260, 1050325, 2100650, 4201300, 5251625, 10503250, 21006500]

約数ペア:

[(1, 21006500), (2, 10503250), (4, 5251625), (5, 4201300), (10, 2100650), (20, 1050325), (25, 840260), (50, 420130), (100, 210065), (125, 168052), (250, 84026), (500, 42013)]