21442160

素因数分解:

$2^4\times 5^1\times {\mathrm{433}}^1\times {\mathrm{619}}^1$

素因数の和:1065

約数の個数: 40

約数和(自身を含む): 50048880

約数和(自身を除く): 28606720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 433, 619, 866, 1238, 1732, 2165, 2476, 3095, 3464, 4330, 4952, 6190, 6928, 8660, 9904, 12380, 17320, 24760, 34640, 49520, 268027, 536054, 1072108, 1340135, 2144216, 2680270, 4288432, 5360540, 10721080, 21442160]

約数ペア:

[(1, 21442160), (2, 10721080), (4, 5360540), (5, 4288432), (8, 2680270), (10, 2144216), (16, 1340135), (20, 1072108), (40, 536054), (80, 268027), (433, 49520), (619, 34640), (866, 24760), (1238, 17320), (1732, 12380), (2165, 9904), (2476, 8660), (3095, 6928), (3464, 6190), (4330, 4952)]