213578128

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{251861}}^1$

素因数の和:251922

約数の個数: 20

約数和(自身を含む): 421616988

約数和(自身を除く): 208038860

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 251861, 503722, 1007444, 2014888, 4029776, 13348633, 26697266, 53394532, 106789064, 213578128]

約数ペア:

[(1, 213578128), (2, 106789064), (4, 53394532), (8, 26697266), (16, 13348633), (53, 4029776), (106, 2014888), (212, 1007444), (424, 503722), (848, 251861)]