21518968

素因数分解:

$2^3\times {\mathrm{79}}^2\times {\mathrm{431}}^1$

素因数の和:595

約数の個数: 24

約数和(自身を含む): 40960080

約数和(自身を除く): 19441112

約数列:

[1, 2, 4, 8, 79, 158, 316, 431, 632, 862, 1724, 3448, 6241, 12482, 24964, 34049, 49928, 68098, 136196, 272392, 2689871, 5379742, 10759484, 21518968]

約数ペア:

[(1, 21518968), (2, 10759484), (4, 5379742), (8, 2689871), (79, 272392), (158, 136196), (316, 68098), (431, 49928), (632, 34049), (862, 24964), (1724, 12482), (3448, 6241)]