18894573

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{409}}^1$

素因数の和:506

約数の個数: 32

約数和(自身を含む): 29520000

約数和(自身を除く): 10625427

約数列:

[1, 3, 9, 27, 29, 59, 87, 177, 261, 409, 531, 783, 1227, 1593, 1711, 3681, 5133, 11043, 11861, 15399, 24131, 35583, 46197, 72393, 106749, 217179, 320247, 651537, 699799, 2099397, 6298191, 18894573]

約数ペア:

[(1, 18894573), (3, 6298191), (9, 2099397), (27, 699799), (29, 651537), (59, 320247), (87, 217179), (177, 106749), (261, 72393), (409, 46197), (531, 35583), (783, 24131), (1227, 15399), (1593, 11861), (1711, 11043), (3681, 5133)]