21368080

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5683}}^1$

素因数の和:5743

約数の個数: 40

約数和(自身を含む): 50746752

約数和(自身を除く): 29378672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 5683, 11366, 22732, 28415, 45464, 56830, 90928, 113660, 227320, 267101, 454640, 534202, 1068404, 1335505, 2136808, 2671010, 4273616, 5342020, 10684040, 21368080]

約数ペア:

[(1, 21368080), (2, 10684040), (4, 5342020), (5, 4273616), (8, 2671010), (10, 2136808), (16, 1335505), (20, 1068404), (40, 534202), (47, 454640), (80, 267101), (94, 227320), (188, 113660), (235, 90928), (376, 56830), (470, 45464), (752, 28415), (940, 22732), (1880, 11366), (3760, 5683)]