21156363248

素因数分解:

$2^4\times {\mathrm{349}}^1\times {\mathrm{3788747}}^1$

素因数の和:3789104

約数の個数: 20

約数和(自身を含む): 41107915800

約数和(自身を除く): 19951552552

約数列:

[1, 2, 4, 8, 16, 349, 698, 1396, 2792, 5584, 3788747, 7577494, 15154988, 30309976, 60619952, 1322272703, 2644545406, 5289090812, 10578181624, 21156363248]

約数ペア:

[(1, 21156363248), (2, 10578181624), (4, 5289090812), (8, 2644545406), (16, 1322272703), (349, 60619952), (698, 30309976), (1396, 15154988), (2792, 7577494), (5584, 3788747)]