21518164

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{347}}^1\times {\mathrm{419}}^1$

素因数の和:807

約数の個数: 24

約数和(自身を含む): 38878560

約数和(自身を除く): 17360396

約数列:

[1, 2, 4, 37, 74, 148, 347, 419, 694, 838, 1388, 1676, 12839, 15503, 25678, 31006, 51356, 62012, 145393, 290786, 581572, 5379541, 10759082, 21518164]

約数ペア:

[(1, 21518164), (2, 10759082), (4, 5379541), (37, 581572), (74, 290786), (148, 145393), (347, 62012), (419, 51356), (694, 31006), (838, 25678), (1388, 15503), (1676, 12839)]