21043430392

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{138443621}}^1$

素因数の和:138443646

約数の個数: 16

約数和(自身を含む): 41533086600

約数和(自身を除く): 20489656208

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 138443621, 276887242, 553774484, 1107548968, 2630428799, 5260857598, 10521715196, 21043430392]

約数ペア:

[(1, 21043430392), (2, 10521715196), (4, 5260857598), (8, 2630428799), (19, 1107548968), (38, 553774484), (76, 276887242), (152, 138443621)]