19713820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140813}}^1$

素因数の和:140829

約数の個数: 24

約数和(自身を含む): 47313504

約数和(自身を除く): 27599684

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140813, 281626, 563252, 704065, 985691, 1408130, 1971382, 2816260, 3942764, 4928455, 9856910, 19713820]

約数ペア:

[(1, 19713820), (2, 9856910), (4, 4928455), (5, 3942764), (7, 2816260), (10, 1971382), (14, 1408130), (20, 985691), (28, 704065), (35, 563252), (70, 281626), (140, 140813)]