21563481

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{1511}}^1$

素因数の和:1652

約数の個数: 16

約数和(自身を含む): 29611008

約数和(自身を除く): 8047527

約数列:

[1, 3, 67, 71, 201, 213, 1511, 4533, 4757, 14271, 101237, 107281, 303711, 321843, 7187827, 21563481]

約数ペア:

[(1, 21563481), (3, 7187827), (67, 321843), (71, 303711), (201, 107281), (213, 101237), (1511, 14271), (4533, 4757)]