21915543

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{18127}}^1$

素因数の和:18174

約数の個数: 16

約数和(自身を含む): 32485376

約数和(自身を除く): 10569833

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 18127, 54381, 235651, 561937, 706953, 1685811, 7305181, 21915543]

約数ペア:

[(1, 21915543), (3, 7305181), (13, 1685811), (31, 706953), (39, 561937), (93, 235651), (403, 54381), (1209, 18127)]