18539056

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:421

約数の個数: 40

約数和(自身を含む): 37229760

約数和(自身を除く): 18690704

約数列:

[1, 2, 4, 8, 16, 47, 89, 94, 178, 188, 277, 356, 376, 554, 712, 752, 1108, 1424, 2216, 4183, 4432, 8366, 13019, 16732, 24653, 26038, 33464, 49306, 52076, 66928, 98612, 104152, 197224, 208304, 394448, 1158691, 2317382, 4634764, 9269528, 18539056]

約数ペア:

[(1, 18539056), (2, 9269528), (4, 4634764), (8, 2317382), (16, 1158691), (47, 394448), (89, 208304), (94, 197224), (178, 104152), (188, 98612), (277, 66928), (356, 52076), (376, 49306), (554, 33464), (712, 26038), (752, 24653), (1108, 16732), (1424, 13019), (2216, 8366), (4183, 4432)]