18984381

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{10357}}^1$

素因数の和:10420

約数の個数: 16

約数和(自身を含む): 27842304

約数和(自身を除く): 8857923

約数列:

[1, 3, 13, 39, 47, 141, 611, 1833, 10357, 31071, 134641, 403923, 486779, 1460337, 6328127, 18984381]

約数ペア:

[(1, 18984381), (3, 6328127), (13, 1460337), (39, 486779), (47, 403923), (141, 134641), (611, 31071), (1833, 10357)]