19121739

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{787}}^1$

素因数の和:899

約数の個数: 32

約数和(自身を含む): 31772160

約数和(自身を除く): 12650421

約数列:

[1, 3, 7, 13, 21, 39, 89, 91, 267, 273, 623, 787, 1157, 1869, 2361, 3471, 5509, 8099, 10231, 16527, 24297, 30693, 70043, 71617, 210129, 214851, 490301, 910559, 1470903, 2731677, 6373913, 19121739]

約数ペア:

[(1, 19121739), (3, 6373913), (7, 2731677), (13, 1470903), (21, 910559), (39, 490301), (89, 214851), (91, 210129), (267, 71617), (273, 70043), (623, 30693), (787, 24297), (1157, 16527), (1869, 10231), (2361, 8099), (3471, 5509)]