21939244

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{433}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 39372480

約数和(自身を除く): 17433236

約数列:

[1, 2, 4, 53, 106, 212, 239, 433, 478, 866, 956, 1732, 12667, 22949, 25334, 45898, 50668, 91796, 103487, 206974, 413948, 5484811, 10969622, 21939244]

約数ペア:

[(1, 21939244), (2, 10969622), (4, 5484811), (53, 413948), (106, 206974), (212, 103487), (239, 91796), (433, 50668), (478, 45898), (866, 25334), (956, 22949), (1732, 12667)]