21957280

素因数分解:

$2^5\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3709}}^1$

素因数の和:3761

約数の個数: 48

約数和(自身を含む): 53290440

約数和(自身を除く): 31333160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 74, 80, 148, 160, 185, 296, 370, 592, 740, 1184, 1480, 2960, 3709, 5920, 7418, 14836, 18545, 29672, 37090, 59344, 74180, 118688, 137233, 148360, 274466, 296720, 548932, 593440, 686165, 1097864, 1372330, 2195728, 2744660, 4391456, 5489320, 10978640, 21957280]

約数ペア:

[(1, 21957280), (2, 10978640), (4, 5489320), (5, 4391456), (8, 2744660), (10, 2195728), (16, 1372330), (20, 1097864), (32, 686165), (37, 593440), (40, 548932), (74, 296720), (80, 274466), (148, 148360), (160, 137233), (185, 118688), (296, 74180), (370, 59344), (592, 37090), (740, 29672), (1184, 18545), (1480, 14836), (2960, 7418), (3709, 5920)]