19805847

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{7393}}^1$

素因数の和:7462

約数の個数: 16

約数和(自身を含む): 28392960

約数和(自身を除く): 8587113

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 7393, 22179, 140467, 347471, 421401, 1042413, 6601949, 19805847]

約数ペア:

[(1, 19805847), (3, 6601949), (19, 1042413), (47, 421401), (57, 347471), (141, 140467), (893, 22179), (2679, 7393)]