21798210

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{103801}}^1$

素因数の和:103818

約数の個数: 32

約数和(自身を含む): 59789952

約数和(自身を除く): 37991742

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 103801, 207602, 311403, 519005, 622806, 726607, 1038010, 1453214, 1557015, 2179821, 3114030, 3633035, 4359642, 7266070, 10899105, 21798210]

約数ペア:

[(1, 21798210), (2, 10899105), (3, 7266070), (5, 4359642), (6, 3633035), (7, 3114030), (10, 2179821), (14, 1557015), (15, 1453214), (21, 1038010), (30, 726607), (35, 622806), (42, 519005), (70, 311403), (105, 207602), (210, 103801)]