28926387

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{19963}}^1$

素因数の和:19999

約数の個数: 24

約数和(自身を含む): 49830144

約数和(自身を除く): 20903757

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 161, 207, 483, 1449, 19963, 59889, 139741, 179667, 419223, 459149, 1257669, 1377447, 3214043, 4132341, 9642129, 28926387]

約数ペア:

[(1, 28926387), (3, 9642129), (7, 4132341), (9, 3214043), (21, 1377447), (23, 1257669), (63, 459149), (69, 419223), (161, 179667), (207, 139741), (483, 59889), (1449, 19963)]