21971451

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{1511}}^1$

素因数の和:1682

約数の個数: 16

約数和(自身を含む): 30336768

約数和(自身を除く): 8365317

約数列:

[1, 3, 37, 111, 131, 393, 1511, 4533, 4847, 14541, 55907, 167721, 197941, 593823, 7323817, 21971451]

約数ペア:

[(1, 21971451), (3, 7323817), (37, 593823), (111, 197941), (131, 167721), (393, 55907), (1511, 14541), (4533, 4847)]