28906215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{547}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 50082816

約数和(自身を除く): 21176601

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 271, 547, 813, 1355, 1641, 2735, 3523, 4065, 7111, 8205, 10569, 17615, 21333, 35555, 52845, 106665, 148237, 444711, 741185, 1927081, 2223555, 5781243, 9635405, 28906215]

約数ペア:

[(1, 28906215), (3, 9635405), (5, 5781243), (13, 2223555), (15, 1927081), (39, 741185), (65, 444711), (195, 148237), (271, 106665), (547, 52845), (813, 35555), (1355, 21333), (1641, 17615), (2735, 10569), (3523, 8205), (4065, 7111)]