18399693

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 27885312

約数和(自身を除く): 9485619

約数列:

[1, 3, 13, 37, 39, 41, 111, 123, 311, 481, 533, 933, 1443, 1517, 1599, 4043, 4551, 11507, 12129, 12751, 19721, 34521, 38253, 59163, 149591, 165763, 448773, 471787, 497289, 1415361, 6133231, 18399693]

約数ペア:

[(1, 18399693), (3, 6133231), (13, 1415361), (37, 497289), (39, 471787), (41, 448773), (111, 165763), (123, 149591), (311, 59163), (481, 38253), (533, 34521), (933, 19721), (1443, 12751), (1517, 12129), (1599, 11507), (4043, 4551)]