28890747

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{859}}^1$

素因数の和:1003

約数の個数: 24

約数和(自身を含む): 43333680

約数和(自身を除く): 14442933

約数列:

[1, 3, 9, 37, 101, 111, 303, 333, 859, 909, 2577, 3737, 7731, 11211, 31783, 33633, 86759, 95349, 260277, 286047, 780831, 3210083, 9630249, 28890747]

約数ペア:

[(1, 28890747), (3, 9630249), (9, 3210083), (37, 780831), (101, 286047), (111, 260277), (303, 95349), (333, 86759), (859, 33633), (909, 31783), (2577, 11211), (3737, 7731)]