21490624505

素因数分解:

$5^1\times 7^1\times {\mathrm{19687}}^1\times {\mathrm{31189}}^1$

素因数の和:50888

約数の個数: 16

約数和(自身を含む): 29475298560

約数和(自身を除く): 7984674055

約数列:

[1, 5, 7, 35, 19687, 31189, 98435, 137809, 155945, 218323, 689045, 1091615, 614017843, 3070089215, 4298124901, 21490624505]

約数ペア:

[(1, 21490624505), (5, 4298124901), (7, 3070089215), (35, 614017843), (19687, 1091615), (31189, 689045), (98435, 218323), (137809, 155945)]