28329987

素因数分解:

$3^1\times 7^2\times {\mathrm{439}}^2$

素因数の和:895

約数の個数: 18

約数和(自身を含む): 44040708

約数和(自身を除く): 15710721

約数列:

[1, 3, 7, 21, 49, 147, 439, 1317, 3073, 9219, 21511, 64533, 192721, 578163, 1349047, 4047141, 9443329, 28329987]

約数ペア:

[(1, 28329987), (3, 9443329), (7, 4047141), (21, 1349047), (49, 578163), (147, 192721), (439, 64533), (1317, 21511), (3073, 9219)]