21919660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{22367}}^1$

素因数の和:22390

約数の個数: 36

約数和(自身を含む): 53548992

約数和(自身を除く): 31629332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 22367, 44734, 89468, 111835, 156569, 223670, 313138, 447340, 626276, 782845, 1095983, 1565690, 2191966, 3131380, 4383932, 5479915, 10959830, 21919660]

約数ペア:

[(1, 21919660), (2, 10959830), (4, 5479915), (5, 4383932), (7, 3131380), (10, 2191966), (14, 1565690), (20, 1095983), (28, 782845), (35, 626276), (49, 447340), (70, 313138), (98, 223670), (140, 156569), (196, 111835), (245, 89468), (490, 44734), (980, 22367)]