19891941

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{9941}}^1$

素因数の和:9996

約数の個数: 16

約数和(自身を含む): 28632960

約数和(自身を除く): 8741019

約数列:

[1, 3, 23, 29, 69, 87, 667, 2001, 9941, 29823, 228643, 288289, 685929, 864867, 6630647, 19891941]

約数ペア:

[(1, 19891941), (3, 6630647), (23, 864867), (29, 685929), (69, 288289), (87, 228643), (667, 29823), (2001, 9941)]