21242722

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1\times {\mathrm{809}}^1$

素因数の和:1521

約数の個数: 16

約数和(自身を含む): 33631200

約数和(自身を除く): 12388478

約数列:

[1, 2, 19, 38, 691, 809, 1382, 1618, 13129, 15371, 26258, 30742, 559019, 1118038, 10621361, 21242722]

約数ペア:

[(1, 21242722), (2, 10621361), (19, 1118038), (38, 559019), (691, 30742), (809, 26258), (1382, 15371), (1618, 13129)]