21891516

素因数分解:

$2^2\times 3^1\times {\mathrm{683}}^1\times {\mathrm{2671}}^1$

素因数の和:3361

約数の個数: 24

約数和(自身を含む): 51174144

約数和(自身を除く): 29282628

約数列:

[1, 2, 3, 4, 6, 12, 683, 1366, 2049, 2671, 2732, 4098, 5342, 8013, 8196, 10684, 16026, 32052, 1824293, 3648586, 5472879, 7297172, 10945758, 21891516]

約数ペア:

[(1, 21891516), (2, 10945758), (3, 7297172), (4, 5472879), (6, 3648586), (12, 1824293), (683, 32052), (1366, 16026), (2049, 10684), (2671, 8196), (2732, 8013), (4098, 5342)]