21155966

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1\times {\mathrm{1231}}^1$

素因数の和:1907

約数の個数: 16

約数和(自身を含む): 34254528

約数和(自身を除く): 13098562

約数列:

[1, 2, 13, 26, 661, 1231, 1322, 2462, 8593, 16003, 17186, 32006, 813691, 1627382, 10577983, 21155966]

約数ペア:

[(1, 21155966), (2, 10577983), (13, 1627382), (26, 813691), (661, 32006), (1231, 17186), (1322, 16003), (2462, 8593)]