21871243660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156223169}}^1$

素因数の和:156223185

約数の個数: 24

約数和(自身を含む): 52490985120

約数和(自身を除く): 30619741460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156223169, 312446338, 624892676, 781115845, 1093562183, 1562231690, 2187124366, 3124463380, 4374248732, 5467810915, 10935621830, 21871243660]

約数ペア:

[(1, 21871243660), (2, 10935621830), (4, 5467810915), (5, 4374248732), (7, 3124463380), (10, 2187124366), (14, 1562231690), (20, 1093562183), (28, 781115845), (35, 624892676), (70, 312446338), (140, 156223169)]