21252754

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:402

約数の個数: 32

約数和(自身を含む): 35925120

約数和(自身を除く): 14672366

約数列:

[1, 2, 17, 19, 34, 38, 167, 197, 323, 334, 394, 646, 2839, 3173, 3349, 3743, 5678, 6346, 6698, 7486, 32899, 53941, 63631, 65798, 107882, 127262, 559283, 625081, 1118566, 1250162, 10626377, 21252754]

約数ペア:

[(1, 21252754), (2, 10626377), (17, 1250162), (19, 1118566), (34, 625081), (38, 559283), (167, 127262), (197, 107882), (323, 65798), (334, 63631), (394, 53941), (646, 32899), (2839, 7486), (3173, 6698), (3349, 6346), (3743, 5678)]