201521385

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{114827}}^1$

素因数の和:114854

約数の個数: 32

約数和(自身を含む): 385822080

約数和(自身を除く): 184300695

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 114827, 344481, 574135, 1033443, 1492751, 1722405, 3100329, 4478253, 5167215, 7463755, 13434759, 15501645, 22391265, 40304277, 67173795, 201521385]

約数ペア:

[(1, 201521385), (3, 67173795), (5, 40304277), (9, 22391265), (13, 15501645), (15, 13434759), (27, 7463755), (39, 5167215), (45, 4478253), (65, 3100329), (117, 1722405), (135, 1492751), (195, 1033443), (351, 574135), (585, 344481), (1755, 114827)]