21392296

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{373}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 41199840

約数和(自身を除く): 19807544

約数列:

[1, 2, 4, 8, 67, 107, 134, 214, 268, 373, 428, 536, 746, 856, 1492, 2984, 7169, 14338, 24991, 28676, 39911, 49982, 57352, 79822, 99964, 159644, 199928, 319288, 2674037, 5348074, 10696148, 21392296]

約数ペア:

[(1, 21392296), (2, 10696148), (4, 5348074), (8, 2674037), (67, 319288), (107, 199928), (134, 159644), (214, 99964), (268, 79822), (373, 57352), (428, 49982), (536, 39911), (746, 28676), (856, 24991), (1492, 14338), (2984, 7169)]