21000929469

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{499}}^1\times {\mathrm{15199}}^1$

素因数の和:15785

約数の個数: 32

約数和(自身を含む): 30643200000

約数和(自身を除く): 9642270531

約数列:

[1, 3, 13, 39, 71, 213, 499, 923, 1497, 2769, 6487, 15199, 19461, 35429, 45597, 106287, 197587, 460577, 592761, 1079129, 1381731, 3237387, 7584301, 14028677, 22752903, 42086031, 98595913, 295787739, 538485371, 1615456113, 7000309823, 21000929469]

約数ペア:

[(1, 21000929469), (3, 7000309823), (13, 1615456113), (39, 538485371), (71, 295787739), (213, 98595913), (499, 42086031), (923, 22752903), (1497, 14028677), (2769, 7584301), (6487, 3237387), (15199, 1381731), (19461, 1079129), (35429, 592761), (45597, 460577), (106287, 197587)]