28987521

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{22111}}^1$

素因数の和:22156

約数の個数: 16

約数和(自身を含む): 42455040

約数和(自身を除く): 13467519

約数列:

[1, 3, 19, 23, 57, 69, 437, 1311, 22111, 66333, 420109, 508553, 1260327, 1525659, 9662507, 28987521]

約数ペア:

[(1, 28987521), (3, 9662507), (19, 1525659), (23, 1260327), (57, 508553), (69, 420109), (437, 66333), (1311, 22111)]