21367040

素因数分解:

$2^8\times 5^1\times {\mathrm{16693}}^1$

素因数の和:16714

約数の個数: 36

約数和(自身を含む): 51183804

約数和(自身を除く): 29816764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 16693, 33386, 66772, 83465, 133544, 166930, 267088, 333860, 534176, 667720, 1068352, 1335440, 2136704, 2670880, 4273408, 5341760, 10683520, 21367040]

約数ペア:

[(1, 21367040), (2, 10683520), (4, 5341760), (5, 4273408), (8, 2670880), (10, 2136704), (16, 1335440), (20, 1068352), (32, 667720), (40, 534176), (64, 333860), (80, 267088), (128, 166930), (160, 133544), (256, 83465), (320, 66772), (640, 33386), (1280, 16693)]