21237418

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:390

約数の個数: 32

約数和(自身を含む): 35085312

約数和(自身を除く): 13847894

約数列:

[1, 2, 23, 31, 46, 53, 62, 106, 281, 562, 713, 1219, 1426, 1643, 2438, 3286, 6463, 8711, 12926, 14893, 17422, 29786, 37789, 75578, 200353, 342539, 400706, 461683, 685078, 923366, 10618709, 21237418]

約数ペア:

[(1, 21237418), (2, 10618709), (23, 923366), (31, 685078), (46, 461683), (53, 400706), (62, 342539), (106, 200353), (281, 75578), (562, 37789), (713, 29786), (1219, 17422), (1426, 14893), (1643, 12926), (2438, 8711), (3286, 6463)]