18478148

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{1321}}^1$

素因数の和:1607

約数の個数: 24

約数和(自身を含む): 34980120

約数和(自身を除く): 16501972

約数列:

[1, 2, 4, 13, 26, 52, 269, 538, 1076, 1321, 2642, 3497, 5284, 6994, 13988, 17173, 34346, 68692, 355349, 710698, 1421396, 4619537, 9239074, 18478148]

約数ペア:

[(1, 18478148), (2, 9239074), (4, 4619537), (13, 1421396), (26, 710698), (52, 355349), (269, 68692), (538, 34346), (1076, 17173), (1321, 13988), (2642, 6994), (3497, 5284)]