28218753

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{601}}^1$

素因数の和:694

約数の個数: 32

約数和(自身を含む): 43921920

約数和(自身を除く): 15703167

約数列:

[1, 3, 9, 27, 37, 47, 111, 141, 333, 423, 601, 999, 1269, 1739, 1803, 5217, 5409, 15651, 16227, 22237, 28247, 46953, 66711, 84741, 200133, 254223, 600399, 762669, 1045139, 3135417, 9406251, 28218753]

約数ペア:

[(1, 28218753), (3, 9406251), (9, 3135417), (27, 1045139), (37, 762669), (47, 600399), (111, 254223), (141, 200133), (333, 84741), (423, 66711), (601, 46953), (999, 28247), (1269, 22237), (1739, 16227), (1803, 15651), (5217, 5409)]