21091954

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{659}}^1\times {\mathrm{1231}}^1$

素因数の和:1905

約数の個数: 16

約数和(自身を含む): 34151040

約数和(自身を除く): 13059086

約数列:

[1, 2, 13, 26, 659, 1231, 1318, 2462, 8567, 16003, 17134, 32006, 811229, 1622458, 10545977, 21091954]

約数ペア:

[(1, 21091954), (2, 10545977), (13, 1622458), (26, 811229), (659, 32006), (1231, 17134), (1318, 16003), (2462, 8567)]