21224680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14341}}^1$

素因数の和:14389

約数の個数: 32

約数和(自身を含む): 49049640

約数和(自身を除く): 27824960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14341, 28682, 57364, 71705, 114728, 143410, 286820, 530617, 573640, 1061234, 2122468, 2653085, 4244936, 5306170, 10612340, 21224680]

約数ペア:

[(1, 21224680), (2, 10612340), (4, 5306170), (5, 4244936), (8, 2653085), (10, 2122468), (20, 1061234), (37, 573640), (40, 530617), (74, 286820), (148, 143410), (185, 114728), (296, 71705), (370, 57364), (740, 28682), (1480, 14341)]