19148913

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1427}}^1$

素因数の和:1514

約数の個数: 32

約数和(自身を含む): 32901120

約数和(自身を除く): 13752207

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 213, 497, 639, 1427, 1491, 1917, 4281, 4473, 9989, 12843, 13419, 29967, 38529, 89901, 101317, 269703, 303951, 709219, 911853, 2127657, 2735559, 6382971, 19148913]

約数ペア:

[(1, 19148913), (3, 6382971), (7, 2735559), (9, 2127657), (21, 911853), (27, 709219), (63, 303951), (71, 269703), (189, 101317), (213, 89901), (497, 38529), (639, 29967), (1427, 13419), (1491, 12843), (1917, 9989), (4281, 4473)]