21582560

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3137}}^1$

素因数の和:3195

約数の個数: 48

約数和(自身を含む): 52191216

約数和(自身を除く): 30608656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3137, 3440, 6274, 6880, 12548, 15685, 25096, 31370, 50192, 62740, 100384, 125480, 134891, 250960, 269782, 501920, 539564, 674455, 1079128, 1348910, 2158256, 2697820, 4316512, 5395640, 10791280, 21582560]

約数ペア:

[(1, 21582560), (2, 10791280), (4, 5395640), (5, 4316512), (8, 2697820), (10, 2158256), (16, 1348910), (20, 1079128), (32, 674455), (40, 539564), (43, 501920), (80, 269782), (86, 250960), (160, 134891), (172, 125480), (215, 100384), (344, 62740), (430, 50192), (688, 31370), (860, 25096), (1376, 15685), (1720, 12548), (3137, 6880), (3440, 6274)]