21949880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{14831}}^1$

素因数の和:14879

約数の個数: 32

約数和(自身を含む): 50725440

約数和(自身を除く): 28775560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 14831, 29662, 59324, 74155, 118648, 148310, 296620, 548747, 593240, 1097494, 2194988, 2743735, 4389976, 5487470, 10974940, 21949880]

約数ペア:

[(1, 21949880), (2, 10974940), (4, 5487470), (5, 4389976), (8, 2743735), (10, 2194988), (20, 1097494), (37, 593240), (40, 548747), (74, 296620), (148, 148310), (185, 118648), (296, 74155), (370, 59324), (740, 29662), (1480, 14831)]